Dr. Siva Sivananthan Profile

Dr. Siva Sivananthan

Director, Microphysics Lab at Univ of Illinois at Chicago

SPIE Involvement:

Conference Program Committee | Author

Websites:

Company Website

Publications (35)

Proceedings Article | 3 May 2017 Paper

Extended spectrum SWIR camera with user-accessible Dewar

Brendan Benapfl, John Lester Miller, Hari Vemuri, Christoph Grein, Siva Sivananthan

Proc. SPIE. 10177, Infrared Technology and Applications XLIII

KEYWORDS: Staring arrays, Readout integrated circuits, Infrared cameras, Short wave infrared radiation, Agriculture, Cameras, Sensors, Field programmable gate arrays

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Proceedings Article | 19 September 2016 Presentation + Paper

SWIR HgCdTe photodiodes for LADAR applications

Paul Boieriu, J. H. Park, S.-R. Hahn, Priyalal Wijewarnasuriya, Barry Stan, S. Sivananthan

Proc. SPIE. 9974, Infrared Sensors, Devices, and Applications VI

KEYWORDS: Signal to noise ratio, Short wave infrared radiation, Mirrors, Optical amplifiers, Mercury cadmium telluride, LIDAR, Sensors, Photodiodes, Receivers, Capacitance

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Proceedings Article | 1 September 2015 Paper

Proton irradiation of MWIR HgCdTe/CdZnTe

Stephen Fahey, Silviu Velicu, Ramana Bommena, Jun Zhao, Vincent Cowan, Christian Morath, Sivalingam Sivananthan

Proc. SPIE. 9616, Nanophotonics and Macrophotonics for Space Environments IX

KEYWORDS: Infrared sensors, Mid-IR, Mercury cadmium telluride, Sensors, Diffusion, Sensor performance, Diodes, Infrared radiation, Medium wave, Temperature metrology

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Proceedings Article | 4 February 2013 Paper

High operation temperature of HgCdTe photodiodes by bulk defect passivation

Paul Boieriu, S. Velicu, R. Bommena, C. Buurma, C. Blisset, C. Grein, S. Sivananthan, P. Hagler

Proc. SPIE. 8631, Quantum Sensing and Nanophotonic Devices X

KEYWORDS: Long wavelength infrared, Mid-IR, Mercury cadmium telluride, Silicon, Hydrogen, Plasmas, Doping, Photodiodes, Diodes, Infrared radiation

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Proceedings Article | 24 October 2012 Paper

Reduced leakage currents of CdZnTe radiation detectors with HgTe/HgCdTe superlattice contacts

Y. Chang, C. Grein, C. Becker, J. Huang, S. Ghosh, F. Aqariden, S. Sivananthan

Proc. SPIE. 8507, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIV

KEYWORDS: Semiconductors, Mercury cadmium telluride, Sensors, Metals, Mercury, Sensor performance, Diodes, Superlattices, Tellurium, Stereolithography

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Proceedings Article | 18 February 2011 Paper

Molecular beam epitaxial growth of CdTe and related II-VI materials on Si for the fabrication of infrared detectors and solar cells

Sivalingam Sivananthan, Michael Carmody, Chollada Gilmore, James Garland

Proc. SPIE. 7995, Seventh International Conference on Thin Film Physics and Applications

KEYWORDS: Infrared detectors, Thin films, Mercury cadmium telluride, Sun, Solar cells, Silicon, Manufacturing, Doping, Thin film solar cells, Molecular beams

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Proceedings Article | 27 August 2010 Paper

Reduction of leakage currents in CdZnTe-based x-ray and gamma-ray detectors: a II-VI semiconductor superlattice approach

Y. Chang, C. Grein, C. Becker, X. Wang, S. Sivananthan

Proc. SPIE. 7805, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII

KEYWORDS: Semiconductors, Mercury cadmium telluride, Sensors, Metals, X-rays, Electrons, Sensor performance, Heterojunctions, Superlattices, Stereolithography

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Proceedings Article | 29 April 2010 Paper

Multijunction single-crystal CdTe-based solar cells: opportunities and challenges

Sivalingam Sivananthan, James Garland, Michael Carmody

Proc. SPIE. 7683, Energy Harvesting and Storage: Materials, Devices, and Applications

KEYWORDS: Thin films, Photovoltaics, Solar energy, Sun, Solar cells, Germanium, Gallium arsenide, Silicon, Resistance, Multijunction solar cells

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Proceedings Article | 28 August 2009 Paper

On the optical dispersive properties of HgCdTe as a function of depth

Yong Chang, Vaidya Nathan, Paul LeVan, C. Grein, C Becker, S. Sivananthan

Proc. SPIE. 7419, Infrared Systems and Photoelectronic Technology IV

KEYWORDS: Infrared detectors, Long wavelength infrared, Thermography, Mid-IR, Mercury cadmium telluride, Data modeling, Sensors, Dispersion, Infrared radiation, Absorption

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Proceedings Article | 3 September 2008 Paper

Hydrostatic pressure dependence of intersubband transitions of HgTe/Hg1-xCdxTe superlattices and FIR detector applications

C. Becker, K. Ortner, V. Latussek, C. Grein, S. Sivananthan

Proc. SPIE. 7082, Infrared Spaceborne Remote Sensing and Instrumentation XVI

KEYWORDS: Infrared sensors, Quantum wells, Cadmium, Sensors, Far infrared, Infrared radiation, Superlattices, Tellurium, Stereolithography, Absorption

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Proceedings Article | 14 May 2007 Paper

Pronounced Auger suppression in long wavelength HgCdTe devices grown by molecular beam epitaxy

Priyalal Wijewarnasuriya, Gregory Brill, Yuanping Chen, Nibir Dhar, Chris Grein, Silviu Velicu, P. Y. Emelie, HyeSon Jung, Sivalingam Sivanathan, Arvind D'Souza, Maryn Stapelbroek, John Reekstin

Proc. SPIE. 6542, Infrared Technology and Applications XXXIII

KEYWORDS: Mercury cadmium telluride, Sensors, Annealing, Diffusion, Quantum efficiency, Resistance, Doping, Solids, Arsenic, Molecular beam epitaxy

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Proceedings Article | 18 May 2006 Paper

An analysis of gamma radiation effects on ZnS- and CdTe-passivated HgCdTe photodiodes

Min Yung Lee, Young Ho Kim, Nam Ho Lee, Yong Soo Lee, Siva Sivananthan, Hee Chul Lee

Proc. SPIE. 6206, Infrared Technology and Applications XXXII

KEYWORDS: Mid-IR, Photodetectors, Mercury cadmium telluride, Zinc, Photodiodes, Diodes, Infrared radiation, Gamma radiation, Infrared photography, Radiation effects

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Proceedings Article | 17 May 2006 Paper

Development of high performance radiation hardened antireflection coatings for LWIR and multicolor IR focal plane arrays

Ashok Sood, Yash Puri, Latika Becker, Meimei Tidrow, Raymond Balcerak, Gregory Brill, Priyalal Wijewarnasuriya, Nibir Dhar, Paul Boieriu, Chad Fulk, Siva Sivananthan, Joseph Yehoda, Steve Finke

Proc. SPIE. 6206, Infrared Technology and Applications XXXII

KEYWORDS: Staring arrays, Long wavelength infrared, Thin films, Antireflective coatings, Diamond, Silicon, Coating, Silicon films, Ozone, Semiconducting wafers

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Proceedings Article | 9 September 2005 Paper

Advances in multi-color large area focal plane array sensors for standoff detection

Ashok Sood, Yash Puri, Robert Richwine, Latika Becker, Nibir Dhar, Siva Sivanathan, Jerrold Zimmerman

Proc. SPIE. 5881, Infrared and Photoelectronic Imagers and Detector Devices

KEYWORDS: Staring arrays, Microbolometers, Long wavelength infrared, Infrared sensors, Mid-IR, Mercury cadmium telluride, Standoff detection, Imaging systems, Sensors, Silicon

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Proceedings Article | 22 October 2004 Paper

MWIR detectors on HgCdTe grown by MBE on 3-in. diameter silicon substrates

Tae-Seok Lee, Jun Zhao, Yong Chang, Renganathan Ashokan, Sivalingam Sivananthan, Paul Boieriu, Yuanping Chen, Gregory Brill, Priyalal Wijewarnasuriya, Nibir Dhar

Proc. SPIE. 5564, Infrared Detector Materials and Devices

KEYWORDS: Mid-IR, Mercury cadmium telluride, Sensors, Annealing, Interfaces, Silicon, Diffusion, Mercury, Heterojunctions, Arsenic

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Proceedings Article | 22 October 2004 Paper

Design and development of multicolor detector arrays

Ashok Sood, E. James Egerton, Yash Puri, Enrico Bellotti, Latika Becker, Raymond Balcerak, Siva Sivananthan

Proc. SPIE. 5564, Infrared Detector Materials and Devices

KEYWORDS: Staring arrays, Infrared detectors, Mercury cadmium telluride, Sensors, Mercury, 3D modeling, Detector arrays, Chemical elements, Arsenic, Instrument modeling

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Multi-color infrared (IR) focal planes are required for high performance sensor applications. These sensors will require multi-color focal plane arrays (FPA) that will cover various wavelengths of interest in MWIR/LWIR and LWIR/VLWIR bands. There has been a significant progress in HgCdTe detector technology for multi-color MWIR/LWIR and LWIR/VLWIR focal plane arrays [1,2,3]. Two-color IR FPA eliminate the complexity of multiple single-color IR FPAs and provide a significant reduction of weight and power in a simpler, reliable and affordable systems. The complexity of multicolor IR detector MWIR/LWIR makes the device optimization by trial and error not only impractical but also merely impossible. Too many different geometrical and physical variables need to be considered at the same time. Additionally material characteristics are only relatively controllable and depend on the process repeatability. In this context the ability of performing simulation experiments where only one or a few parameters are carefully controlled is paramount for a quantum improvement of a new generation of multicolor detectors for various applications. Complex multi-color detector pixels cannot be designed and optimized by using a conventional 1D models. Several additional physical phenomena need to be taken into account. In designing a conventional photovoltaic IR detector array, a trade off exists on the choice of the pixel pitch, the pixel area and its height. The main goal of the device optimization is to reduce the pixel cross talk while keeping a high filling factor and detection efficiency. If the pixel height is made comparable to the lateral pixel dimension the contribution of the lateral photocurrent and lateral generation-recombination current becomes relevant and a full 2D simulation needs to be performed. It also important to point out that the few attempts to perform 2D simulations have reached the conclusion that for advanced IR arrays a full 3D approach should be used. The most challenging aspect of the array design and simulation is the pixel cross-talk effects. Since this is caused by the interaction with the four nearest neighboring pixels, even a description based on a 2D simulation model in most cases is not adequate. It is consequently important to include results from 3D simulation models as a guide to build lower dimensionality models.

Proceedings Article | 8 December 2003 Paper

Gold diffusion in mercury cadmium telluride grown by molecular beam epitaxy

Yusuf Selamet, Rasdip Singh, Jun Zhao, Yong Zhou, Sivalingam Sivananthan, Nibir Dhar

Proc. SPIE. 5209, Materials for Infrared Detectors III

KEYWORDS: Gold, Mercury cadmium telluride, Annealing, Ions, Silicon, Diffusion, Mercury, Doping, Ion beams, Tellurium

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Proceedings Article | 8 December 2003 Paper

Fabrication and characteristics of nonequilibrium VLWIR detectors with HgTe/CdTe superlattice active regions

Tae-Seok Lee, Charles Becker, Christoph Grein, Sivalingam Sivananthan, Vaidya Nathan

Proc. SPIE. 5209, Materials for Infrared Detectors III

KEYWORDS: Gold, Mercury cadmium telluride, Cadmium, Sensors, Annealing, Diffusion, Mercury, Superlattices, Tellurium, Stereolithography

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Proceedings Article | 8 December 2003 Paper

HgCdTe for far-infrared heterodyne detection

Yong Zhou, Jun Zhao, Rita Boreiko, Yong Chang, Yusuf Selamet, Renganathan Ashokan, Charles Becker, Albert Betz, Sivalingam Sivananthan

Proc. SPIE. 5209, Materials for Infrared Detectors III

KEYWORDS: Mercury cadmium telluride, Cadmium, Sensors, Electrodes, X-ray diffraction, Heterodyning, Superlattices, Tellurium, Stereolithography, Absorption

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