Prof. Izabela Naydenova Profile

Prof. Izabela Naydenova

Lecturer at Technological Univ Dublin

SPIE Involvement:

Conference Program Committee | Author

Publications (37)

SPIE Journal Paper | 14 February 2024 Open Access

Modeling holographic optical element performance with an extended source; experimental investigation using misaligned point sources

Jorge Lasarte, Kevin Murphy, Izabela Naydenova, Jesús Atencia, Maria Victoria Collados, Suzanne Martin

JOM, Vol. 4, Issue 01, 014002, (February 2024) https://doi.org/10.1117/12.10.1117/1.JOM.4.1.014002

KEYWORDS: Holographic optical elements, Light emitting diodes, Diffraction, Lenses, Modeling, Holography, Spatial frequencies, MATLAB, Beam divergence, Zemax

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Proceedings Article | 31 May 2023 Presentation + Paper

Fabrication and characterisation of large area, uniform, and controllable surface relief patterns in photopolymer material

Owen Kearney, I. Naydenova

Proceedings Volume 12574, 125740D (2023) https://doi.org/10.1117/12.2665681

KEYWORDS: Diffraction, Bacteria, Polarization, Surface roughness, Diffraction gratings, Mirrors, Atomic force microscopy, Adhesion, Holography, Fourier transforms

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Proceedings Article | 31 May 2023 Presentation + Paper

Design and fabrication of volume holographic optical couplers for a range of non-normal incidence angles

Dipanjan Chakraborty, Rosen Georgiev, Sinead Aspell, Vincent Toal, Izabela Naydenova, Dervil Cody, Suzanne Martin

Proceedings Volume 12574, 125740E (2023) https://doi.org/10.1117/12.2665596

KEYWORDS: Holographic optical elements, Diffraction, Holography, Diffraction gratings, Bragg wavelengths, Spatial frequencies, Total internal reflection, Photopolymers, Volume Bragg gratings, Diffractive optical elements, Holographic materials

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Proceedings Article | 31 May 2023 Presentation + Paper

Development of holographic optical elements for use in wound monitoring

P. Stoeva, T. Mikulchyk, B. Rogers, M. Oubaha, S. Martin, D. Cody, M. Ferrara, G. Coppola, I. Naydenova

Proceedings Volume 12574, 1257406 (2023) https://doi.org/10.1117/12.2665499

KEYWORDS: Waveguides, Holographic optical elements, Diffraction gratings, Holography, Diffraction, Wound healing, Sol gels, Sensing systems

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Proceedings Article | 31 May 2023 Poster + Paper

Developing novel holographic optomechanical sensing platform for detection of volatile organic compounds

Faolan Radford McGovern, Catherine Grogan, George Amarandei, S. Mintova, Izabela Naydenova

Proceedings Volume 12574, 1257413 (2023) https://doi.org/10.1117/12.2665513

KEYWORDS: Sensors, Diffraction gratings, Diffraction, Holography, Bioalcohols, Zeolites, Vacuum chambers, Vacuum, Optical gratings, Environmental sensing

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Proceedings Article | 31 May 2023 Presentation + Paper

Modelling HOE performance with an extended source: experimental investigation using misaligned point sources

Jorge Lasarte, Kevin Murphy, Izabela Naydenova, Jesús Atencia, M. Victoria Collados, Suzanne Martin

Proceedings Volume 12574, 1257405 (2023) https://doi.org/10.1117/12.2665494

KEYWORDS: Holographic optical elements, Diffraction, Light emitting diodes, Lenses, Holography, Spatial frequencies, MATLAB, Beam divergence, Zemax, Modeling

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Proceedings Article | 30 May 2022 Presentation

Development of photosensitive sol-gel material for high refractive index modulation using thermal treatment during post exposure diffraction efficiency growth process

Brian Rogers, Tatsiana Mikulchyk, Pamela Stoeva, Dervil Cody, Mohamed Oubaha, Suzanne Martin, Izabela Naydenova

Proceedings Volume PC12151, PC1215103 (2022) https://doi.org/10.1117/12.2621202

KEYWORDS: Diffraction, Refractive index, Modulation, Sol-gels, Holograms, Glasses, Water, Volume holography, Spatial frequencies, Solar concentrators

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Proceedings Article | 30 May 2022 Presentation

Mechanism of grating formation in a fast-curing and water-resistant photopolymerisable glass

Tatsiana Mikulchyk, Brian Rogers, Pamela Stoeva, Alicja Kaworek, Mohamed Oubaha, Suzanne Martin, Dervil Cody, Izabela Naydenova

Proceedings Volume PC12151, PC1215101 (2022) https://doi.org/10.1117/12.2618100

KEYWORDS: Holographic optical elements, Glasses, Holography, Diffraction gratings, Sol-gels, Optical lithography, Diffraction, Volume holography, Solar concentrators, Refractive index

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The demand for holographic optical elements (HOEs) is continuously increasing due to their potential applications in a wide range of quickly advancing technologies. The main challenge for HOE development is in the design and preparation of holographic materials, which satisfy environmental requirements during device exploitation. Photosensitive glasses are potential candidates for the development of HOEs with improved environmental stability, mechanical stability and hardness. Recently, a novel photopolymerisable hybrid sol-gel (PHSG) for holographic recording of volume gratings with high performance has been reported. Due to its valuable combination of properties, PHSG has potential for mass-production of highly efficient and durable optical devices with long-term stable performance at different ambient conditions. Nevertheless, the mechanism of grating formation is not fully characterised and understood. To achieve control over the performance of the material and further improve its properties, systematic study is required. In this research, the mechanism of grating formation in the PHSG is investigated by analysing two main effects contributing to the refractive index modulation. The first effect is density change due to both polymerization of monomers under holographic patterning and polycondensation caused by natural aging of the sol-gel material. The second effect is diffusion of mobile species such as dye molecules induced by concentration gradients and/or distribution of small nanoparticles caused by spatially varying heat dissipation resulting from light absorption during holographic patterning. Experimental results confirn that the mechanism of grating formation in the PHSG can be defined as the creation of spatially-varying refractive index within the bulk of the material mainly due to changes in density induced by photopolymerisation and polycondensation. Diffusion processes are observed to have low impact on the grating formation. The proposed model facilitates controlled and predictable diffraction efficiency of gratings recorded on the PHSG, thereby furthering the prospect of the development of HOEs with customisable specification.

Proceedings Article | 5 March 2021 Poster + Presentation + Paper

Optofluidic grating with optically active medium

Sergio Calixto, Jose L. Garcia-Cordero, Diana Cedillo-Alcantar, Izabela Naydenova, Guillermo Garnica

Proceedings Volume 11689, 116891H (2021) https://doi.org/10.1117/12.2576719

KEYWORDS: Optofluidics, Liquids, Active optics, Diffraction gratings, Polarization, Water, Prisms, Optical activity, Microfluidics, Lenses

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Proceedings Article | 7 April 2020 Presentation

Study of the holographic recording properties of photosensitive nanocomposite containing magnetic nanoparticles (Conference Presentation)

Muhammad Irfan, Suzanne Martin, Izabela Naydenova

Proceedings Volume 11367, 113670L (2020) https://doi.org/10.1117/12.2555844

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Proceedings Article | 1 April 2020 Presentation

Comparison of sol-gel-based holographic recording medium and photopolymer for use in a solar concentrator (Conference Presentation)

Brian Rogers, Izabela Naydenova, Suzanne Martin

Proceedings Volume 11367, 113670P (2020) https://doi.org/10.1117/12.2555744

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Proceedings Article | 1 April 2020 Presentation

Multilayer photopolymer for broad spectral range holographic optical elements (Conference Presentation)

Sanjay Keshri, Izabela Naydenova, Kevin Murphy, Suzanne Martin

Proceedings Volume 11367, 113670Q (2020) https://doi.org/10.1117/12.2556006

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Diffractive Optical Elements (DOEs) utilize diffraction at sub-micron features to re-direct and control light. Volume phase holographic materials, such as photopolymer, are advantageous for use in fabricating optical elements because the diffraction efficiency can approach 100%, the whole element can be recorded in one exposure and high diffraction and slant angles are possible. Self-developing photopolymers also facilitate mass manufacture. Holographic gratings have been developed for numerous applications including spectroscopy, solar concentration, and monochrome LEDs, however, the inherent angular and wavelength selectivity of the volume phase hologram generally restricts applications to laser systems and sources with narrow spectral ranges. Multiplexing more than one grating into a single photopolymer layer can extend the range, however, unwanted additional gratings are frequently recorded. In this paper, we discuss laminating multiple photopolymer HOEs together as a method for increasing the wavelength and angular working range of devices. This involves combining HOEs designed to produce the desired output beam for different angular and/or spectral input beams. Stacking of photopolymer layers has previously been demonstrated to increase the angular range of gratings and recently the authors produced a compound HOE with significantly broadened wavelength and angular selectivity curves by laminating two HOEs recorded sequentially at a single wavelength. However, such solutions are not easily translated to more complex elements such as lenses where the spatial frequency and grating slant angles are varying. This paper discusses laminating together two photopolymer layers sensitized for different recording wavelengths for the purpose of holographically recording a compound-element volume-HOE lens for use with a broadband LED. The angular and wavelength selectivity are characterized and the challenges and advantages of the different approaches are discussed and compared.

Proceedings Article | 1 April 2020 Presentation

Investigation of nanozeolite-doped holographic structures for sensing volatile organic compounds (Conference Presentation)

Graceson Antony, Dervil Cody, Svetlana Mintova, Izabela Naydenova

Proceedings Volume 11354, 1135412 (2020) https://doi.org/10.1117/12.2554967

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Proceedings Article | 1 April 2020 Presentation

Functionalized photosensitive materials for development of holographic sensors (Conference Presentation)

Sabad E-Gul, Muhammad Irfan, Tatsiana Mikulchyk, John Cassidy, Suzanne Martin, Izabela Naydenova

Proceedings Volume 11367, 113670C (2020) https://doi.org/10.1117/12.2555897

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Holographic recording materials can be utilised in the fabrication of microstructures for use as sensors [1,2]. In order to achieve this the holographic recording material/structure has to be functionalized by incorporation of a chemical component providing sensitivity to a specific analyte/stimuli. We introduce the different approaches to photosensitive material/photonic structure functionalization and present experimental results of fabrication of two examples of sensing devices: for selective detection of sodium and potassium ions and temperature indicator with controlled reversibility. The first example reported here compares the performance of a surface relief grating (SRG) fabricated by holographic lithography in an acrylamide photopolymer and a volume holographic grating (VHG) recorded in a water resistant novel cellulose based photopolymer. The surface relief gratings were modified by incorporation of either dibenzo-18-crown-6 (DC) or tetraethyl 4-tert-butylcalix[4]arene (TBC) as chelating agents [3]. DC coated layers show a selective response to K+ over Na+, whereas for TBC there is a dominant response for Na+ over K+. The sensors respond to Potassium and Sodium metal ions within the physiological ranges. Normal levels of Na+ in human serum lie in the range 135-148 mmol/L and the normal K+ level is 3.5-5.0 mmol/L. The response of the SRG sensor to Sodium is compared to the response of a VHG recorded in a cellulose based novel material functionalized by incorporation of TBC. The advantages and challenges of each of these two approaches to material/structure functionalization are analysed. The second example is a volume phase hologram, recorded in a low-toxicity thermally sensitive photopolymer Poly(N-isopropylacrylamide). Both transmission and reflection holograms were studied by exposing them to temperature ranging within 8-60 oC. It was observed that the reversibility of the hologram response to temperatures above the polymer Lower Critical Solution Temperature (32 oC) can be controlled, thus these devices can be used as elevated temperature indicators. References [1] A. K. Yetisen, et al, Chem. Rev. 114, 10654–10696 (2014). [2] D. Cody, et al, Appl. Opt, 57, No. 22, pp. E173-E183 (2018). [3] Sabad-E Gul, et al, Sensors, 19 No 5, p 1026 (2019).

Proceedings Article | 1 April 2020 Presentation

Novel fast drying and water resistant photopolymerisable glass for volume holography (Conference Presentation)

Tatsiana Mikulchyk, Mohamed Oubaha, Sabad E-Gul, Izabela Naydenova, Dervil Cody

Proceedings Volume 11367, 113670G (2020) https://doi.org/10.1117/12.2555360

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Proceedings Article | 5 September 2019 Paper

Study of effect of magnetic nanoparticles properties on hologram recording capability in photopolymer nanocomposite for development of holographic sensor/actuator

M. Irfan, S. Martin, I. Naydenova

Proceedings Volume 11081, 110812I (2019) https://doi.org/10.1117/12.2528874

KEYWORDS: Holography, Magnetism, Nanocomposites, Sensors, Nanoparticles, Holograms, Magnetic sensors, Holographic interferometry, Doping, Holographic concentrators

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Proceedings Article | 5 September 2019 Paper

Development of photopolymer material with improved dynamic range and sensitivity

Brian Rogers, Izabela Naydenova, Suzanne Martin

Proceedings Volume 11081, 110812G (2019) https://doi.org/10.1117/12.2528715

KEYWORDS: Refractive index, Modulation, Photopolymers, Holographic optical elements, Diffraction, Holography, Diffraction gratings, Solar concentrators, Holograms, Ultraviolet radiation

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In this study the effect of the concentration of acrylamide and the influence of different initiators in a photopolymer composition for holographic recording of diffraction gratings is investigated. Light manipulating Holographic Optical Elements (HOEs) have a number of characteristics which can be optimised for different roles. However, at the core of these devices is the refractive index modulation that has been created in the material during recording. Typically higher refractive index modulation will enable greater diffraction efficiency. Solar concentrating HOEs can particularly benefit from material that experiences higher refractive index modulation. For a solar concentrator to have a high acceptance angle thinner photopolymer layers are preferable. Thinner layers can lead to a reduction of the device’s diffraction efficiency unless the refractive index modulation increases to compensate.

This paper presents an optimisation of a photopolymer formulation for improved refractive index modulation and sensitivity of the layer. An increase in the acrylamide concentration of 66% resulted in 50% higher refractive index modulation with values reaching 5 × 10⁻³in 40 micron layers.

Faster recording times are an important consideration for the commercialization and mass production of photopolymer devices [1]. Higher production rates and lower costs are some of the main advantages. Altering the initiator is expected to have an effect on the material’s sensitivity and thus on recording time.

Several initiators were compared, triethanolamine (TEA), methyldiethanolamine (MDEA) and dimethylethanolamine (DMEA). It was found that holograms recorded with MDEA as the initiator recorded 58% faster over TEA based photopolymer at larger layer thicknesses.

The stability of the photopolymer was also tested with different protective coatings when subjected to UV light. The properties exhibited by this photopolymer composition make it a promising candidate for development of solar concentrating applications; however improvements to the durability in conditions of UV radiation will have to be made before it is suitable for solar concentration.

Proceedings Article | 31 August 2017 Paper

Development of sensitive holographic devices for physiological metal ion detection

Sabad-e-Gul , Suzanne Martin, John Cassidy, Izabela Naydenova

Proceedings Volume 10354, 103540C (2017) https://doi.org/10.1117/12.2275734

KEYWORDS: Sensors, Holography, Ions, Sodium, Photopolymers, Biosensors, Alkali metals, Measurement devices, Blood, Failure analysis

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Proceedings Article | 15 May 2017 Presentation + Paper

Comparison of two methods for equalising the diffraction efficiency of different spatial frequency components of holographic optical elements

S. Keshri, K. Murphy, V. Toal, I. Naydenova, S. Martin

Proceedings Volume 10233, 102330X (2017) https://doi.org/10.1117/12.2265598

KEYWORDS: Refractive index, Volume holography, Modulation, Photopolymers, Collimation, Diffraction, Holographic optical elements, Spatial frequencies, Holography, Light emitting diodes, Diffraction gratings, Diffractive optical elements, Holograms, Spectroscopy, Ultrafast lasers

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Proceedings Article | 6 April 2017 Paper

Effect of monomer diffusion on photoinduced shrinkage in photopolymer layers determined by electronic speckle pattern interferometry

Mohesh Moothanchery, Manojit Pramanik, Vincent Toal, Izabela Naydenova

Proceedings Volume 10127, 101270W (2017) https://doi.org/10.1117/12.2251260

KEYWORDS: Diffusion, Holography, Speckle pattern, Interferometry, Phase shifting, Holographic optical elements, Speckle, Phase measurement, Polymerization, Molecules, Phase shifts, Glasses, Ferroelectric materials, Mirrors, Beam splitters

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Proceedings Article | 9 March 2016 Paper

Quantitative measurement of displacement in photopolymer layers during holographic recording using phase shifting electronic speckle pattern interferometry

Mohesh Moothanchery, Viswanath Bavigadda, Paul Kumar Upputuri, Manojit Pramanik, Vincent Toal, Izabela Naydenova

Proceedings Volume 9718, 97181C (2016) https://doi.org/10.1117/12.2211577

KEYWORDS: Holography, Phase shifting, Interferometry, Polymers, Speckle pattern, Photopolymerization, Ferroelectric materials, Mirrors, Phase measurement

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Proceedings Article | 8 May 2015 Paper

Humidity and temperature response of photopolymer-based holographic gratings

Tatsiana Mikulchyk, James Walshe, Dervil Cody, Suzanne Martin, Izabela Naydenova

Proceedings Volume 9508, 950809 (2015) https://doi.org/10.1117/12.2183782

KEYWORDS: Photopolymers, Humidity, Diffraction gratings, Diffraction, Holography, Sensors, Temperature metrology, Reflection, Refractive index, Visual optics

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Holographic sensors have significant potential in various applications ranging from in vitro diagnostics to optical security. They are capable of providing fast, real-time, reversible or irreversible, visual colorimetric or optical readouts. The main challenge in the development of holographic sensors is to improve their selectivity by functionalizing the holographic recording material and achieve a response to a specific analyte. This material should be permeable to the analyte and its properties should change under exposure to the analyte. This work explores the humidity and temperature response of volume phase gratings recorded in photopolymers containing acrylamide and diacetone acrylamide as monomers, and triethanolamine and N-phenylglycine as photoinitiators. Characterization of the humidity response of photopolymer-based gratings in the relative humidity (RH) range of 20-90 % was carried out by measuring the diffraction efficiency of slanted transmission gratings and the position of the maximum intensity in the spectral response of reflection gratings. A strong humidity dependence of the diffraction efficiency of diacetone acrylamide-based transmission gratings was observed at RH=20-90%. The humidity dependence of the spectral response of the reflection gratings showed that photopolymers containing triethanolamine are more hydrophilic than photopolymers containing N-phenylglycine. The temperature response of slanted transmission gratings was investigated in the temperature (T) range of 20–60 °C. Exposure of the photopolymer layers containing triethanolamine to elevated temperature showed that the observed Bragg angle shift was caused by layer shrinkage due to water evaporation. The application of a sealing technique allowed for the observation of the photopolymer layer swelling due to the layer’s thermal expansion. The results demonstrate an effective approach to obtaining photopolymer-based gratings with tuneable temperature and humidity sensitivity.

Proceedings Article | 8 May 2015 Paper

Diffractive optical elements with an increased angular and wavelength range of operation for application in solar collectors

H. Akbari, I. Naydenova, S. Martin

Proceedings Volume 9508, 95080J (2015) https://doi.org/10.1117/12.2183156

KEYWORDS: Holography, Holographic optical elements, Solar cells, Spatial frequencies, Solar energy, Solar concentrators, Diffraction gratings, Diffraction, Spherical lenses, Holographic concentrators

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Proceedings Article | 5 May 2012 Paper

Diacetone acrylamide-based non-toxic holographic photopolymer

D. Cody, I. Naydenova, E. Mihaylova

Proceedings Volume 8429, 84291B (2012) https://doi.org/10.1117/12.923116

KEYWORDS: Refractive index, Modulation, Holography, Polymerization, Molecules, Diffusion, Spatial frequencies, Diffraction gratings, Lens design, Physics

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Proceedings Article | 2 May 2012 Paper

Real-time shrinkage studies in photopolymer films using holographic interferometry

M. Moothanchery, I. Naydenova, V. Bavigadda, S. Martin, V. Toal

Proceedings Volume 8437, 84370I (2012) https://doi.org/10.1117/12.922413

KEYWORDS: Holographic interferometry, Holography, Holograms, Polymerization, Beam splitters, 3D image reconstruction, Glasses, CMOS cameras, Photopolymers, Holography applications

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Proceedings Article | 11 April 2007 Paper

Hologram-based humidity indicator for domestic and packaging applications

I. Naydenova, R. Jallapuram, V. Toal, S. Martin

Proceedings Volume 6528, 652811 (2007) https://doi.org/10.1117/12.716242

KEYWORDS: Humidity, Holograms, Holography, Reflection, Holographic optical elements, Calibration, 3D image reconstruction, Packaging, Sensors, Holography applications

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Proceedings Article | 9 June 2006 Paper

Holographic recording in nanoparticle-doped photopolymer

Izabela Naydenova, Hosam Sherif, Sveteana Mintova, Suzanne Martin, Vincent Toal

Proceedings Volume 6252, 625206 (2006) https://doi.org/10.1117/12.676503

KEYWORDS: Nanoparticles, Refractive index, Spatial frequencies, Holography, Diffraction, Solids, Modulation, Diffusion, Diffraction gratings, Polymers

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Proceedings Article | 9 June 2006 Paper

Two way diffusion model for the recording mechanism in a self developing dry acrylamide photopolymer

Suzanne Martin, Izabela Naydenova, Jallapuram Raghavendra, Robert Howard, Vincent Toal

Proceedings Volume 6252, 625205 (2006) https://doi.org/10.1117/12.676501

KEYWORDS: Diffusion, Diffraction, Diffraction gratings, Holography, Polymerization, Polymers, Spatial frequencies, Modulation, Refractive index, Holographic materials

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Proceedings Article | 9 June 2006 Paper

Comparison of three electronic speckle pattern shearing interferometers using photopolymer holographic optical elements

Emilia Mihaylova, Izabela Naydenova, Suzanne Martin, Vincent Toal

Proceedings Volume 6252, 62521Z (2006) https://doi.org/10.1117/12.677189

KEYWORDS: Diffraction gratings, Holography, Glasses, Speckle pattern, Control systems, Holographic optical elements, Shearing interferometers, CCD cameras, Interferometry, Holographic interferometry

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Proceedings Article | 9 June 2006 Paper

Replay at optical communications wavelengths of holographic gratings recorded in the visible

Vincent Toal, Maurice Whelan, Alberto Volcan, Izabela Naydenova, Suzanne Martin

Proceedings Volume 6252, 625204 (2006) https://doi.org/10.1117/12.676497

KEYWORDS: Diffraction gratings, Holography, Diffraction, Telecommunications, Visible radiation, Zirconium, Fiber Bragg gratings, Prisms, Reflection, Optical communications

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Proceedings Article | 15 October 2005 Paper

Simple electronic speckle pattern shearing interferometer with a holographic grating as a shearing element

Emilia Mihaylova, Izabela Naydenova, Suzanne Martin, Vincent Toal

Proceedings Volume 5962, 596226 (2005) https://doi.org/10.1117/12.625163

KEYWORDS: Diffraction gratings, Holography, Diffraction, Speckle pattern, Shearing interferometers, Holographic interferometry, Interferometry, Control systems, Fringe analysis, Optical components

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Proceedings Article | 13 June 2005 Paper

A compact electronic speckle pattern interferometry system using a photopolymer reflection holographic optical element

Sridhar Guntaka, J. Raghavendra, Vincent Toal, Izabela Naydenova, Suzanne Martin, S. Mintova

Proceedings Volume 5856, (2005) https://doi.org/10.1117/12.613252

KEYWORDS: Holographic optical elements, Speckle pattern, Holograms, Holography, CCD cameras, Modulation, Interferometry, Holographic interferometry, Speckle, Semiconductor lasers

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Proceedings Article | 8 June 2005 Paper

Holographic recording of patterns in thin film acrylamide-based photopolymer

I. Naydenova, K. Pavani, E. Mihaylova, K. Loudmer, S. Martin, V. Toal

Proceedings Volume 5827, (2005) https://doi.org/10.1117/12.605400

KEYWORDS: Spatial frequencies, Modulation, Holography, Diffusion, Molecules, Thin films, Optical design, Polymers, Systems modeling, Diffractive optical elements

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Proceedings Article | 8 June 2005 Paper

Study of an acrylamide-based photopolymer for use as a holographic data storage medium

H. Sherif, I. Naydenova, S. Martin, C. McGinn, G. Berger, C. Denz, V. Toal

Proceedings Volume 5827, (2005) https://doi.org/10.1117/12.604562

KEYWORDS: Diffraction gratings, Holography, Diffraction, Multiplexing, Data storage, Spatial light modulators, Polymerization, Beam splitters, Holograms, Molecules

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Proceedings Article | 3 June 2005 Paper

Investigation of polymerization rate in an acrylamide-based photopolymer using Raman spectroscopy

Raghavendra Jallapuram, Izabela Naydenova, Hugh Byrne, Suzanne Martin, Robert Howard, Vincent Toal

Proceedings Volume 5826, (2005) https://doi.org/10.1117/12.605416

KEYWORDS: Polymerization, Raman spectroscopy, Diffusion, Holography, Holograms, Molecules, Polymers, Spectroscopy, Solids, Holographic optical elements

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Proceedings Article | 22 June 2004 Paper

Electronic speckle pattern shearing interferometry using photopolymer diffractive optical elements for vibration measurements

Emilia Mihaylova, Izabela Naydenova, Suzanne Martin, Vincent Toal

Proceedings Volume 5503, (2004) https://doi.org/10.1117/12.579539

KEYWORDS: Holography, Interferometry, Diffraction gratings, Speckle pattern, Vibrometry, Shearography, Modal analysis, Aluminum, Diffractive optical elements, CCD cameras

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Proceedings Article | 18 February 2004 Paper

Application of photopolymer holographic gratings in electronic speckle pattern shearing interferometry

Emilia Mihaylova, Izabela Naydenova, Hosam Sherif, Suzanne Martin, Vincent Toal

Proceedings Volume 5249, (2004) https://doi.org/10.1117/12.512971

KEYWORDS: Holography, Diffraction gratings, Glasses, Interferometry, CCD cameras, Speckle pattern, Holographic interferometry, Holography applications, Spatial frequencies, Fringe analysis

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Showing 5 of 37 publications

Conference Committee Involvement (3)

Photosensitive Materials and their Applications III

8 April 2024 | Strasbourg, France

Photosensitive Materials and their Applications II

5 April 2022 | Strasbourg, France

Photosensitive Materials and their Applications

6 April 2020 | Online Only, France

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