Dr. Xiang-Hua Zhang Profile

Dr. Xiang-Hua Zhang

at Univ of Rennes I

SPIE Involvement:

Author

Publications (33)

Proceedings Article | 27 May 2022 Paper

Evaluation of the potential of high index chalcogenide lenses for automotive applications

Guillaume Druart, Valentin Reux, Laurent Calvez, Xiang-Hua Zhang, Florence De La Barrière, Jean-Baptiste Volatier, Elodie Tartas, Raphael Proux

Proceedings Volume 12103, 121030D (2022) https://doi.org/10.1117/12.2618287

KEYWORDS: Sensors, Lens design, Silicon, Lenses, Glasses, Thermography, Chalcogenide glass, Refraction, Refractive index, Optical design

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Infrared cameras could serve automotive applications by delivering breakthrough perception systems for both in-cabin passengers monitoring and car surrounding. However, low-cost and high-throughput manufacturing methods are essential to sustain the growth in thermal imaging markets for automotive applications, and for other close-to-consumer applications, which have a fast growth potential. With the reduction of the pixel pitch of microbolometer detectors, their cost has decreased considerably and now the optical part represents a significant part of the system cost. Fast low cost infrared lenses suitable for microbolometers are already sold by companies like Umicore, Lightpath, FLIR… Chalcogenide glasses are widely used as materials for optics because they have many cost advantages, especially due to the possibility of mass molding the optics. However, with the reduction of the pixel pitch, it is more and more difficult to design high performance lenses with a limited number of optics. The possibility of molding the optics allows us to use many highly aspherical surfaces at affordable costs. However, Chalcogenide glasses have usually a lower refractive index than other more expensive infrared materials such as Germanium. Indeed, high refractive index materials are known to be effective in attenuating the amplitude of many geometric aberrations. In this presentation, we evaluate the interest of high index Chalcogenide lenses, especially TGG and TGS, to design optical systems meeting the needs of the automobile with a limited number of optics. TGG glass has an index of refraction of 3.396 at a wavelength of 10µm, i.e. its index of refraction is close to the Silicon one and was initially studied for space applications. TGS has a lower index of refraction (3.12@10µm) but can be used in a cost effective manufacturing process by using flash spark plasma sintering (SPS) on raw powder. Demonstrators with TGG glass have been made and their performance evaluated.

Proceedings Article | 4 March 2022 Presentation + Paper

Mechanical alloying and molding by spark plasma sintering of telluride based glasses

Valentin Reux, Laurent Calvez, Antoine Gautier, Hongli Ma, Frédéric Charpentier, Hugues Tariel, Xiang-Hua Zhang

Proceedings Volume 11997, 119970E (2022) https://doi.org/10.1117/12.2608128

KEYWORDS: Glasses, Crystals, Germanium, Refractive index, Glass molding

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Proceedings Article | 12 April 2021 Presentation + Paper

Simple optical characterization of new high index chalcogenide glass

Thomas Hingant, Pol Briantais, Raphaël Proux, Mathieu Rozé, Petr Němec, Antoine Bréhaut, Laurent Calvez, Xiang-Hua Zhang, Yann Guimond, John Franks

Proceedings Volume 11737, 1173702 (2021) https://doi.org/10.1117/12.2586076

KEYWORDS: Chalcogenide glass, Refractive index, Optics manufacturing, Optical properties, Lenses, Metrology, Lens manufacturing, Glasses

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Proceedings Article | 21 April 2020 Presentation + Paper

Radial gradient refractive index from crystallized chalcogenide glass for infrared applications

Thomas Hingant, Enora Lavanant, Raphaël Proux, Mathieu Rozé, François Cheviré, Yann Guimond, John Franks, Laurent Calvez, Xiang-Hua Zhang

Proceedings Volume 11403, 114030B (2020) https://doi.org/10.1117/12.2558009

KEYWORDS: Crystals, GRIN lenses, Glasses, Refractive index, Chalcogenide glass, Infrared radiation, Fabrication, Interferometry, Chalcogenides, Annealing

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Proceedings Article | 21 November 2017 Open Access

Optical characterization of infrared telluride glass fibers for space use

A.J. Faber, L.K. Cheng, W. Gielesen, C. Boussard-Plédel, S. Maurugeon, B. Bureau, X.H. Zhang, J. Lucas, J. Pereira do Carmo

Proceedings Volume 10566, 105660X (2017) https://doi.org/10.1117/12.2308263

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Proceedings Article | 20 November 2017 Open Access

Integrated optics for nulling interferometry in the thermal infrared: progress and recent achievements

M. Barillot, E. Barthelemy, L. Bastard, J.-E. Broquin, G. Hawkins, V. Kirschner, S. Ménard, G. Parent, C. Poinsot, A. Pradel, C. Vigreux, S. Zhang, X. Zhang

Proceedings Volume 10565, 105650Y (2017) https://doi.org/10.1117/12.2309134

KEYWORDS: Integrated optics, Waveguides, Infrared radiation, Information operations, Optical filters, Chalcogenides, Polishing, Astronomical imaging, Nulling interferometry, Thermography

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SPIE Journal Paper | 27 May 2016

Preparation of chalcogenide glass fiber using an improved extrusion method

Chen Jiang, Xunsi Wang, Minming Zhu, Huijuan Xu, Qiuhua Nie, Shixun Dai, Guangming Tao, Xiang Shen, Ci Cheng, Qingde Zhu, Fangxing Liao, Peiquan Zhang, Peiqing Zhang, Zijun Liu, Xiang-Hua Zhang

OE, Vol. 55, Issue 05, 056114, (May 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.5.056114

KEYWORDS: Glasses, Cladding, Germanium, Antimony, Chalcogenide glass, Selenium, Structured optical fibers, Thermography, Optical fibers, Absorption

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Proceedings Article | 20 May 2016 Paper

Manufacturing of transparent ZnS ceramics by powders sintering

O. Merdrignac-Conanec, N. Hakmeh, G. Durand, X.-H. Zhang

Proceedings Volume 9822, 982203 (2016) https://doi.org/10.1117/12.2223087

KEYWORDS: Zinc, Ceramics, Combustion, Chemical vapor deposition, FT-IR spectroscopy, Particles, Transmittance, Manufacturing, Scanning electron microscopy, Infrared radiation

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Proceedings Article | 17 May 2016 Paper

Evaluation of chalcogenide glasses for multispectral imaging in the visible, SWIR and LWIR spectral regions

A. Bréhault, L. Calvez, T. Pain, H. L. Ma, D. Bigou, M. Duchêne, P. Adam, J. Rollin, X. H. Zhang

Proceedings Volume 9822, 982202 (2016) https://doi.org/10.1117/12.2222900

KEYWORDS: Thermography, Chalcogenide glass, Multispectral imaging, Visible radiation, Infrared radiation, Glasses, Antireflective coatings, Germanium, Long wavelength infrared, Crystals

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Proceedings Article | 24 June 2014 Paper

Multispectral glass transparent from visible to thermal infrared

A. Brehault, L. Calvez, T. Pain, P. Adam, J. Rollin, X. Zhang

Proceedings Volume 9070, 90702F (2014) https://doi.org/10.1117/12.2048319

KEYWORDS: Glasses, Crystals, Thermography, Refractive index, Infrared radiation, Zinc, Visible radiation, Dispersion, Prisms, Short wave infrared radiation

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Proceedings Article | 25 September 2013 Paper

Colorless chalco-halide Ga2S3-GeS2-CsCl glasses as new optical material

Yannick Ledemi, Mohammed El-Amraoui, Laurent Calvez, Xiang-Hua Zhang, Bruno Bureau, Younès Messaddeq

Proceedings Volume 8847, 884704 (2013) https://doi.org/10.1117/12.2024461

KEYWORDS: Glasses, Infrared radiation, Crystals, Absorption, Transparency, Water, Refractive index, Silica, Photography, Ions

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Proceedings Article | 18 June 2013 Paper

New solutions and technologies for uncooled infrared imaging

Joël Rollin, Frédéric Diaz, Christophe Fontaine, Brigitte Loiseaux, Mane-Si Laure Lee, Christophe Clienti, Fabrice Lemonnier, Xianghua Zhang, Laurent Calvez

Proceedings Volume 8704, 870423 (2013) https://doi.org/10.1117/12.2015784

KEYWORDS: Glasses, Image processing, Manufacturing, Germanium, Optics manufacturing, Long wavelength infrared, Modulation transfer functions, Spatial frequencies, Image filtering, Infrared imaging

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Proceedings Article | 26 February 2010 Paper

Laurent Calvez, Changgui Lin, Mathieu Rozé, Yannick Ledemi, Erwan Guillevic, Bruno Bureau, Mathieu Allix, Xianghua Zhang

Proceedings Volume 7598, 759802 (2010) https://doi.org/10.1117/12.840968

KEYWORDS: Glasses, Crystals, Heat treatments, Chalcogenide glass, Gallium, Thermography, Luminescence, Infrared radiation, Scanning electron microscopy, Visible radiation

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Proceedings Article | 12 February 2010 Paper

Waveguides based on TeGe thick films for spatial interferometry

Eléonore Barthélémy, Stéphanie Albert, Caroline Vigreux, Annie Pradel, Xiang-Hua Zhang, Shaoqian Zhang, Gilles Parent, Thierry Billeton, Jean-Emmanuel Broquin, Stéphane Ménard, Marc Barillot, Volker Kirschner

Proceedings Volume 7604, 760405 (2010) https://doi.org/10.1117/12.846022

KEYWORDS: Glasses, Tellurium, Waveguides, Planar waveguides, Polishing, Germanium, Infrared radiation, Refractive index, Surface finishing, Prisms

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Proceedings Article | 28 July 2008 Paper

Integrated optics for nulling interferometry in the thermal infrared

Marc Barillot, Eleonore Barthelemy, Jean-Emmanuel Broquin, Jérôme Frayret, Jérôme Grelin, Gary Hawkins, Volker Kirschner, Gilles Parent, Annie Pradel, Emmanuel Rossi, Caroline Vigreux, Shaoqian Zhang, Xianghua Zhang

Proceedings Volume 7013, 701314 (2008) https://doi.org/10.1117/12.789378

KEYWORDS: Integrated optics, Optical filters, Waveguides, Chalcogenides, Etching, Information operations, Infrared radiation, Thermography, Glasses, Nulling interferometry

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Proceedings Article | 28 February 2006 Paper

Spectroscopic properties of Er³⁺-doped chalco-halide glass ceramics

Vincent Seznec, Hongli Ma, Xianghua Zhang, Virginie Nazabal, Jean-Luc Adam, X. S. Qiao, X. P. Fan

Proceedings Volume 6116, 61160B (2006) https://doi.org/10.1117/12.645909

KEYWORDS: Glasses, Erbium, Crystals, Ceramics, Ions, Spectroscopy, Luminescence, Heat treatments, Upconversion, Transmittance

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Proceedings Article | 14 June 2004 Paper

Controllable far-infrared-transmitting glass ceramics based on chalcogenide and halide

Xianghua Zhang, Hongli Ma, Jacques Lucas

Proceedings Volume 5350, (2004) https://doi.org/10.1117/12.533136

KEYWORDS: Glasses, Crystals, Annealing, Ceramics, Germanium, Infrared radiation, Thermography, Antimony, Chalcogenide glass, Composites

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Proceedings Article | 21 April 1999 Paper

Infrared glass fibers for evanescent wave spectroscopy

Catherine Boussard-Pledel, Sandrine Hocde, Gilles Fonteneau, Hong Li Ma, Xian-Hua Zhang, Karine Le Foulgoc, Jacques Lucas, B. Perio, J. Hamelin

Proceedings Volume 3596, (1999) https://doi.org/10.1117/12.346706

KEYWORDS: Optical fibers, Glasses, Microwave radiation, Spectroscopy, Polymers, Infrared spectroscopy, Absorption, Chemical reactions, Infrared radiation, Coating

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Proceedings Article | 28 September 1998 Paper

Preparation, optimization, and infrared applications of TeX glass optical fibers

Karine Le Foulgoc, Lydia Le Neindre, Sandrine Hocde, Frederic Smektala, Xhang Zhang, Jacques Lucas

Proceedings Volume 3416, (1998) https://doi.org/10.1117/12.323401

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Proceedings Article | 5 June 1998 Paper

Recent improvements in the development of IR TeX glass fibers

Sandrine Hocde, Lydia Le Neindre, Karine Le Foulgoc, Catherine Boussard-Pledel, Patrice Le Roux, Xhang Zhang, Jacques Lucas

Proceedings Volume 3262, (1998) https://doi.org/10.1117/12.309467

KEYWORDS: Optical fibers, Glasses, Polishing, Sensors, Radiometry, Spectroscopy, Temperature metrology, Single mode fibers, Infrared technology, Infrared sensors

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Proceedings Article | 18 April 1997 Paper

IR glass optical fibers for CO2 laser welding

Lydia Le Neindre, Karine Le Foulgoc, Xhang Zhang, Jacques Lucas, F. Gilbert, O. Lescoat, F. Ardouin, P. Morillon

Proceedings Volume 2977, (1997) https://doi.org/10.1117/12.271016

KEYWORDS: Optical fibers, Glasses, Sensors, Carbon dioxide lasers, Temperature metrology, Signal attenuation, Mercury cadmium telluride, Connectors, Energy transfer, Laser tissue interaction

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Proceedings Article | 10 December 1996 Paper

Tapered TeX glass optical fibers for remote IR spectroscopic analysis

Karine Le Foulgoc, Lydia Le Neindre, Xhang Zhang, Jacques Lucas

Proceedings Volume 2836, (1996) https://doi.org/10.1117/12.260610

KEYWORDS: Optical fibers, Absorption, Glasses, Sensors, Spectroscopy, Bioalcohols, Infrared spectroscopy, Chemical analysis, Signal attenuation, Polymers

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Proceedings Article | 25 October 1996 Paper

Low-temperature measurement by using IR TeX glass fibers

F. Gilbert, F. Ardouin, P. Morillon, Karine Le Foulgoc, Xhang Zhang, Chantal Blanchetiere, Hong Li Ma, Jacques Lucas

Proceedings Volume 2839, (1996) https://doi.org/10.1117/12.255356

KEYWORDS: Optical fibers, Sensors, Temperature metrology, Glasses, Polymers, Signal attenuation, Signal detection, Mercury cadmium telluride, Infrared sensors, Absorption

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Proceedings Article | 5 April 1996 Paper

TeX glass fibers with a core-cladding structure

Lydia Le Neindre, Karine Le Foulgoc, Yann Guimond, Xhang Zhang, Jacques Lucas

Proceedings Volume 2677, (1996) https://doi.org/10.1117/12.237551

KEYWORDS: Optical fibers, Glasses, Polishing, Absorption, Cladding, Spectroscopy, Interfaces, Polymers, Infrared spectroscopy, Ultraviolet radiation

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Proceedings Article | 29 September 1995 Paper

Analysis of biological and chemical compounds by remote spectroscopy using IR TeX glass fibers

Karine Le Foulgoc, Lydia Le Neindre, Yann Guimond, Hong Li Ma, Xhang Zhang, Jacques Lucas

Proceedings Volume 2508, (1995) https://doi.org/10.1117/12.221755

KEYWORDS: Optical fibers, Glasses, Spectroscopy, Absorption, Infrared spectroscopy, Thermography, Chemical analysis, Coating, Polymers, Cladding

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Proceedings Article | 1 May 1995 Paper

Infrared fibers for medium power delivery in the 10-um region and remote spectroscopy

Xhang Zhang, Karine Le Foulgoc, Chantal Blanchetiere, Hong Li Ma, Jacques Lucas

Proceedings Volume 2396, (1995) https://doi.org/10.1117/12.208388

KEYWORDS: Optical fibers, Absorption, Glasses, Spectroscopy, Polymers, Coating, Infrared spectroscopy, Signal attenuation, Carbon dioxide lasers, Infrared radiation

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Proceedings Article | 22 December 1994 Paper

CO2 laser power delivery using TeX glass fiber

Xian-Hua Zhang, Hong Li Ma, Chantal Blanchetiere, Jacques Lucas, Pierre Froissart, J. Farcy

Proceedings Volume 2328, (1994) https://doi.org/10.1117/12.197508

KEYWORDS: Glasses, Carbon dioxide lasers, Signal attenuation, Absorption, Fiber lasers, Tellurium, Structured optical fibers, Tissues, Laser therapeutics, Laser dentistry

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Proceedings Article | 28 July 1994 Paper

Tellurium halide IR fibers for remote spectroscopy

Xhang Zhang, Hong Li Ma, Chantal Blanchetiere, Karine Le Foulgoc, Jacques Lucas, Jean Heuze, P. Colardelle, P. Froissard, D. Picque, G. Corrieu

Proceedings Volume 2131, (1994) https://doi.org/10.1117/12.180702

KEYWORDS: Optical fibers, Glasses, Absorption, Spectroscopy, Chemical analysis, Tellurium, Infrared spectroscopy, Sensors, Signal attenuation, Chemical species

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Proceedings Article | 14 December 1992 Paper

Chalcogen halides IR glasses

Jacques Lucas, Xhang Zhang, Gilles Fonteneau, Hong Li Ma, Chantal Blanchetiere, Herve L'Helgoualch

Proceedings Volume 1760, (1992) https://doi.org/10.1117/12.130791

KEYWORDS: Glasses, Refractive index, Signal attenuation, Tellurium, Selenium, Chemical elements, Arsenic, Thermography, Optical fibers, Polishing

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Proceedings Article | 1 January 1992 Paper

New IR glass fibers based on tellurium halide

Xhang Zhang, Hong Li Ma, Jacques Lucas

Proceedings Volume 1591, (1992) https://doi.org/10.1117/12.56569

KEYWORDS: Glasses, Optical fibers, Tellurium, Selenium, Absorption, Signal attenuation, Infrared radiation, Fiber optics, Atmospheric optics, Crystals

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