Dr. Natalya Tokranova Profile

Dr. Natalya Tokranova

at SUNY Polytechnic Institute

SPIE Involvement:

Author

Publications (19)

Proceedings Article | 2 March 2022 Presentation + Paper

Strategies for the development of photonic sensors for COVID-19

Benjamin Miller, Alanna Klose, Michael Bryan, John Cognetti, Daniel Steiner, Natalya Tokranova, Brian Piorek, Nicholas Judy, Minhaz Abedin, Ethan Young, Carl Meinhart, Raymond Jakubowicz, Harold Warren, Nathaniel Cady

Proceedings Volume 11951, 1195104 (2022) https://doi.org/10.1117/12.2616682

KEYWORDS: Sensors, Photodetectors, Blood, Microfluidics, Reflectometry, Molecules, Imaging arrays, Diagnostics, Control systems, Viruses

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Proceedings Article | 12 April 2021 Presentation

Optical sensors for coronavirus antibodies: Analyzing the human response to COVID-19

Benjamin Miller, John Cognetti, Daniel Steiner, Michael Bryan, Alanna Klose, Ethan Luta, Joseph Bucukovski, Conor Shanahan, Minhaz Abedin, Natalya Tokranova, Ethan Young, Carl Meinhart, Jon Schmuke, Harold Warren, Raymond Jakubowicz, Nathaniel Cady

Proceedings Volume 11749, 117490F (2021) https://doi.org/10.1117/12.2586109

KEYWORDS: Optical sensors, Sensors, Pathogens, Viruses, Surveillance, Reflectometry, Photodetectors, Integrated photonics, Imaging arrays, Blood

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Proceedings Article | 19 February 2018 Presentation + Paper

Photoactuation: novel MEMS-based constructs and applications of azobenzene

Logan Butt, Matthew Strohmayer, Tristen Head, Atul Dhall, Lauren Sfakis, Natalya Tokranova, James Castracane

Proceedings Volume 10491, 1049104 (2018) https://doi.org/10.1117/12.2290790

KEYWORDS: Polymers, Liquid crystals, Polymerization, Microfluidics, Polymethylmethacrylate, Capillaries, Glasses, Scanning electron microscopy, Lithography, Polymer thin films

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Proceedings Article | 27 August 2014 Paper

Mass sensing AlN sensors for waste water monitoring

R. Porrazzo, G. Potter, L. Lydecker, Z. Foraida, S. Gattu, N. Tokranova, J. Castracane

Proceedings Volume 9173, 91730E (2014) https://doi.org/10.1117/12.2061966

KEYWORDS: Aluminum nitride, Zinc oxide, Sensors, Electrodes, Acoustics, Nanomaterials, Semiconductors, Nanoparticles, Liquids, Prototyping

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Proceedings Article | 19 February 2009 Paper

SU-8 microfluidic channels with porous sidewalls for biological applications

Michael Padgen, Alison Gracias, Natalya Tokranova, Nathaniel Cady, James Castracane

Proceedings Volume 7207, 720707 (2009) https://doi.org/10.1117/12.807665

KEYWORDS: Microfluidics, Semiconducting wafers, Photomicroscopy, Polymers, Plasma, Photoresist materials, Silicon, Proteins, Scanning electron microscopy, BioMEMS

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Proceedings Article | 7 February 2009 Paper

A novel optical component for the development of an integrated interferometric system

A. Gracias, N. Tokranova, S. Olson, J. Castracane

Proceedings Volume 7212, 72120P (2009) https://doi.org/10.1117/12.808043

KEYWORDS: Optical components, Mirrors, Vertical cavity surface emitting lasers, Polyurethane, Beam splitters, Sensors, Interferometry, Integrated optics, Polymers, System integration

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SPIE Journal Paper | 1 April 2008

New approaches for chip-to-chip interconnects: integrating porous silicon with MOEMS

Da Song, Natalya Tokranova, Alison Gracias, James Castracane

JM3, Vol. 7, Issue 02, 021013, (April 2008) https://doi.org/10.1117/12.10.1117/1.2909279

KEYWORDS: Diffractive optical elements, Silicon, Actuators, Mirrors, Multilayers, Optical components, Scanning electron microscopy, Diffraction, Microopto electromechanical systems, Electrochemical etching

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Proceedings Article | 9 February 2008 Paper

A porous silicon thermally tunable optical filter

Da Song, Natalya Tokranova, Alison Gracias, James Castracane

Proceedings Volume 6887, 68870C (2008) https://doi.org/10.1117/12.759165

KEYWORDS: Actuators, Silicon, Optical filters, Reflectivity, Microopto electromechanical systems, Electrochemical etching, Optical components, Etching, Semiconducting wafers, Refractive index

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Proceedings Article | 8 February 2008 Paper

SU8-based static diffractive optical elements: wafer-level integration with VCSEL arrays

A. Gracias, N. Tokranova, J. Castracane

Proceedings Volume 6899, 68990J (2008) https://doi.org/10.1117/12.760400

KEYWORDS: Vertical cavity surface emitting lasers, Diffraction gratings, Diffraction, Diffractive optical elements, Optical interconnects, Glasses, Optical components, Integrated optics, Wafer-level optics, Silicon

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With the continued miniaturization and sophistication of current generations of semiconductor devices, it is the limitations of data transfer rates that are beginning to impact system performance. Although conventional pathways continue progressing, researchers are moving toward optical interconnects as a potential solution. Optical interconnection is a promising way to replace existing global or chip-to-chip interconnects in future integrated circuits. In contrast to existing metallic wiring, optical interconnects exhibit smaller distance-related loss or distortion of the signal, no deleterious fringing effects and no heat dissipation in the interconnect itself. Pioneering interconnect schemes are currently being developed using both planar waveguides and fibers to distribute optical signals around printed circuit boards. However, researchers are now attempting to incorporate novel, freespace optical interconnects, which will boost data transfer rates by a factor of a thousand. These systems consist of a number of components including vertical cavity surface emitting lasers (VCSELs), lenses, diffractive optical elements and detectors. Integration of single components into sub-systems will help to minimize the optical system footprint for both on-chip and chip-to-chip interconnects. This paper will present the development of both independent and integrated with VCSELs,static diffractive optical element (DOEs) made of SU8 and prove the feasibility of such an approach. SU8 is a negative tone photoresist, conventionally used for high aspect ratio MEMS-based structures. Recent developments in thin film SU8 along with its low absorption at long wavelengths makes it a suitable material for optical applications. By developing a low cost lithography based process, SU-8 DOEs can be efficiently integrated directly on laser sources with minimal effect to VCSEL performance. This approach could have a significant impact on the creation of next generation optical I/O fabrics.

Proceedings Article | 9 February 2007 Paper

Active silicon components for chip to chip interconnects

James Castracane, Natalya Tokranova, Da Song

Proceedings Volume 6477, 647704 (2007) https://doi.org/10.1117/12.699136

KEYWORDS: Silicon, Optical filters, Beam steering, Prototyping, Optical components, Sensors, Microopto electromechanical systems, Microelectromechanical systems, Electrochemical etching, Reflectivity

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Proceedings Article | 6 February 2007 Paper

Porous silicon 2D photonic crystals

Natalya Tokranova, Da Song, Alison Gracias, James Castracane

Proceedings Volume 6480, 64800T (2007) https://doi.org/10.1117/12.699127

KEYWORDS: Silicon, Photonic crystals, Photoresist materials, Photomasks, Diffraction, Etching, Refractive index, Silicon photonics, Optical components, Optical properties

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Proceedings Article | 10 February 2006 Paper

Novel spatially distributed porous Si optical bandpass filters

N. Tokranova, I. Levitsky, A. Gracias, B. Xu, J. Castracane

Proceedings Volume 6128, 612806 (2006) https://doi.org/10.1117/12.640871

KEYWORDS: Silicon, Electrodes, Optical filters, Aluminum, Semiconducting wafers, Reflectivity, Bandpass filters, Optical microcavities, Refractive index, Interference filters

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Proceedings Article | 4 April 2005 Paper

Hybrid solar cells based on organic material embedded into porous silicon

Natalya Tokranova, Igor Levitsky, Bai Xu, James Castracane, William Euler

Proceedings Volume 5724, (2005) https://doi.org/10.1117/12.590945

KEYWORDS: Silicon, Solar cells, Photovoltaics, Organic materials, Reflectivity, Semiconductors, Electrochemical etching, Copper, Gold, Electrodes

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Proceedings Article | 22 January 2005 Paper

Microfabricated devices for bio-applications

Xiaojun Feng, Ben Szaro, Alison Gracias, Sofie Baselmans, Natalya Tokranova, Bai Xu, James Castracane

Proceedings Volume 5718, (2005) https://doi.org/10.1117/12.591618

KEYWORDS: Fourier transforms, Silicon, Prototyping, Electrodes, Microfabrication, Acquisition tracking and pointing, Microfluidics, Silicon films, Lab on a chip, Calcium

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Proceedings Article | 22 January 2005 Paper

Fabrication of cantilever probes with integrated piezoresistive read-out and built-in piezoelectric actuators

Steve Olson, Bruce Altemus, Balasubramanian Sankaran, Natalya Tokranova, Robert Geer, James Castracane, Bai Xu

Proceedings Volume 5717, (2005) https://doi.org/10.1117/12.591024

KEYWORDS: Silicon, Semiconducting wafers, Atomic force microscopy, Boron, Actuators, Metals, Etching, Oxides, Resistance, Finite element methods

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Proceedings Article | 23 December 2003 Paper

Reliability study of wafer bonding for micro-electro-mechanical systems

Mahmoud Almasri, Bruce Altemus, Alison Gracias, Larry Clow, Natalya Tokranova, James Castracane, Bai Xu

Proceedings Volume 5343, (2003) https://doi.org/10.1117/12.524934

KEYWORDS: Semiconducting wafers, Wafer bonding, Interfaces, Silicon, Microelectromechanical systems, Temperature metrology, Reliability, System on a chip, Polymers, Scanning electron microscopy

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Proceedings Article | 17 January 2003 Paper

Micro-array development for cell secretion studies

Xiaojun Feng, Natalya Tokranova, Bai Xu, Peng Chen, Kevin Gillis, James Castracane

Proceedings Volume 4982, (2003) https://doi.org/10.1117/12.478153

KEYWORDS: Silicon, Etching, Oxides, Electrodes, Semiconducting wafers, Prototyping, Gold, Microfluidics, Plasma enhanced chemical vapor deposition, Metals

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Proceedings Article | 21 June 2002 Paper

Novel microfabricated device to measure hormone/neurotransmitter release with millisecond temporal resolution

Kevin Gillis, Peng Chen, Bai Xu, Natalya Tokranova, Xiaojun Feng, James Castracane

Proceedings Volume 4626, (2002) https://doi.org/10.1117/12.472103

KEYWORDS: Electrodes, Temporal resolution, Microfabrication, Silicon, Neurotransmitters, Diffusion, Carbon, Gold, Measurement devices, Biosensors

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Proceedings Article | 3 June 2002 Paper

Cantilever microscanners for free-space optical interconnects

Bai Xu, Natalya Tokranova, James Castracane, Dong Yan

Proceedings Volume 4652, (2002) https://doi.org/10.1117/12.469569

KEYWORDS: Scanners, Electrodes, Mirrors, Optical interconnects, Feedback control, Microelectromechanical systems, 3D modeling, Computer simulations, Data modeling, Actuators

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Showing 5 of 19 publications

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