Dr. Ravindra B. Lal Profile

Dr. Ravindra B. Lal

Deceased

SPIE Involvement:

Track Chair | Author

Publications (26)

Proceedings Article | 14 September 2018 Paper

Multifunctional organic flexible nanocomposite sensors for biomedical applications

Ashok Batra, Bir Bohara, Ravindra Lal, James Currie, Kunal Grover, Aschalew Kassu, Manmohan Aggarwal

Proceedings Volume 10738, 107381G (2018) https://doi.org/10.1117/12.2320141

KEYWORDS: Sensors, Dielectrics, Nanocomposites, Composites, Resistance, Temperature metrology, Biomedical optics, Energy harvesting, Ferroelectric polymers, Nanoparticles

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SPIE Journal Paper | 6 January 2015 Open Access

Perovskites: transforming photovoltaics, a mini-review

Ashwith Kumar Chilvery, Ashok Batra, Bin Yang, Kai Xiao, Padmaja Guggilla, Mohan Aggarwal, Raja Surabhi, Ravi Lal, James Currie, Benjamin Penn

JPE, Vol. 5, Issue 01, 057402, (January 2015) https://doi.org/10.1117/12.10.1117/1.JPE.5.057402

KEYWORDS: Solar cells, Photovoltaics, Excitons, Solar energy, Electrons, Dielectrics, Tin, Lead, Metals, Perovskite

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Proceedings Article | 7 September 2006 Paper

Computation of current responsivity of a bimorph pyroelectric infrared detector

Padmaja Guggilla, A. Batra, J. Currie, M. Aggarwal, R. Lal

Proceedings Volume 6295, 62950Q (2006) https://doi.org/10.1117/12.679501

KEYWORDS: Sensors, Pyroelectric materials, Modulation, Infrared detectors, Infrared sensors, Silicon, Ferroelectric materials, Pyroelectric detectors, Infrared radiation, Thin films

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Proceedings Article | 21 September 2005 Paper

Investigation on the growth kinetics of KDP:LAP and TGS:LAP single crystals

A. Batra, J. Stephens, K. Bhat, M. Aggarwal, Burl Peterson, Michael Curley, R. Lal

Proceedings Volume 5912, 591206 (2005) https://doi.org/10.1117/12.611418

KEYWORDS: Crystals, Infrared radiation, Doping, Potassium, Crystallography, Ions, Visual optics, Infrared detectors, Thermography, Laser crystals

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Proceedings Article | 31 August 2005 Paper

Bulk crystal growth, thermophysical, and optical properties of lead magnesium niobate-lead titanate (PMN-PT) piezoelectric single crystals

M. Aggarwal, F. Kochary, A. Batra, R. Lal, D. Lianos

Proceedings Volume 5912, 591205 (2005) https://doi.org/10.1117/12.617328

KEYWORDS: Crystals, Niobium, Lead, Ceramics, Magnesium, Scanning electron microscopy, Raman spectroscopy, Raman scattering, Platinum, Perovskite

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Proceedings Article | 4 April 2005 Paper

Investigation on nanocomposites for pyroelectric infrared sensors

Padmaja Guggilla, Ashok Batra, Mohan Aggarwal, Ravindra Lal

Proceedings Volume 5724, (2005) https://doi.org/10.1117/12.592233

KEYWORDS: Composites, Particles, Ceramics, Dielectrics, Infrared sensors, Nanocomposites, Lead, Ferroelectric polymers, Polymer thin films, Ferroelectric materials

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Proceedings Article | 22 October 2004 Paper

Electrooptic characterization and Czochralski growth technique of pure and doped lithium niobate crystals

Tesfaye Gebre, Denise Edwards, Manmohan Aggarwal, Asok Batra, Matthew Edwards, Darayas Patel, LaQuieta Huey, Ravindra Lal

Proceedings Volume 5560, (2004) https://doi.org/10.1117/12.559956

KEYWORDS: Crystals, Lithium niobate, Electro optics, Iron, Dielectrics, Polarimetry, Refractive index, Ions, Nonlinear crystals, Lithium

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Proceedings Article | 18 June 2004 Paper

Growth and characteristics of organic and semiorganic nonlinear optical crystals

Ashok Batra, Tesfaye Gebre, K. Bhat, M. Aggarwal, Burl Peterson, Sergey Sarkisov, R. Lal

Proceedings Volume 5351, (2004) https://doi.org/10.1117/12.529577

KEYWORDS: Crystals, Nonlinear crystals, Nonlinear optics, Crystal optics, Harmonic generation, Polishing, Second-harmonic generation, Ultraviolet radiation, Photography, Photonic crystals

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Proceedings Article | 18 June 2004 Paper

Studies of electrical conduction in pyroelectric DTGS: PVDF composites

Ashok Batra, M. Simmons, Padmaja Guggilla, M. Aggarwal, R. Lal

Proceedings Volume 5351, (2004) https://doi.org/10.1117/12.529560

KEYWORDS: Composites, Ferroelectric polymers, Temperature metrology, Crystals, Ultrasonics, Dielectrics, Physics, Infrared sensors, Transducers, Infrared detection

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Proceedings Article | 14 June 2004 Paper

Growth and optical characteristics of pure and doped lithium niobate crystals

Tesfaye Gebre, M. Aggarwal, Ashok Batra, M. Edwards, R. Lal

Proceedings Volume 5350, (2004) https://doi.org/10.1117/12.529519

KEYWORDS: Crystals, Lithium niobate, Dielectrics, Iron, Ions, Electro optics, Crystal optics, Nonlinear crystals, Lithium, Absorption

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Proceedings Article | 8 December 2003 Paper

Present status of TGS-based pyroelectric infrared detectors and computational simulation of their integration with silicon technology

Ashok Batra, J. Currie, S. Aggarwal, M. Aggarwal, R. Lal

Proceedings Volume 5209, (2003) https://doi.org/10.1117/12.504365

KEYWORDS: Crystals, Sensors, Infrared detectors, Silicon, Dielectrics, Infrared sensors, Thin films, Pyroelectric detectors, Diffusion, Urea

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Proceedings Article | 10 November 2003 Paper

Synthesis, characterization, and bulk crystal growth of nonlinear 3-substituted salicylidene aniline derivatives

Kamala Bhat, Tesfaye Gebre, Ashok Batra, Mohan Aggarwal, Matthew Edwards, Michael Curley, Sergey Sarsikov, R. Lal, Benjamin Penn, Donald Frazier, D. Prabhu, N. Laxmeshwar

Proceedings Volume 5212, (2003) https://doi.org/10.1117/12.508589

KEYWORDS: Crystals, Nonlinear optics, Refractive index, Nonlinear crystals, Transmittance, Polishing, Urea, Second-harmonic generation, Absorption, Harmonic generation

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Proceedings Article | 25 October 2002 Paper

Purification of organic nonlinear optical materials for bulk crystal growth from melt

Tesfaye Gebre, Kamala Bhat, Ashok Batra, Ravindra Lal, Mohan Aggarwal, Benjamin Penn, Donald Frazier

Proceedings Volume 4813, (2002) https://doi.org/10.1117/12.452411

KEYWORDS: Crystals, Nonlinear crystals, Organic materials, Glasses, Nonlinear optics, Nonlinear optical materials, Photonic crystals, FT-IR spectroscopy, Content addressable memory, Thermal analysis

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Proceedings Article | 25 October 2002 Paper

Growth of nonlinear optical materials at Alabama A&M University

Mohan Aggarwal, Tesfaye Gebre, Ashok Batra, Matthew Edwards, Ravindra Lal, Benjamin Penn, Donald Frazier

Proceedings Volume 4813, (2002) https://doi.org/10.1117/12.452409

KEYWORDS: Crystals, Nonlinear crystals, Nonlinear optics, Crystallography, Liquid crystals, Liquids, Photonic crystals, Nonlinear optical materials, Laser crystals, Silicon

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Proceedings Article | 15 August 2000 Paper

Microresonator modified as magnetic sensor

S. Lokhre, Prakash Apte, R. Raajeev, R. Lal

Proceedings Volume 4176, (2000) https://doi.org/10.1117/12.395645

KEYWORDS: Resonators, Magnetism, Silicon, Magnetic sensors, Microresonators, Optical microscopes, Oxides, Scanning electron microscopy, Microelectromechanical systems, Electron beam lithography

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Proceedings Article | 28 June 1999 Paper

Melt growth of a new nonlinear optical organic crystal triethylphosphine sulfide using modified Bridgman-Stockbarger technique

Kenya Curry, Mohan Aggarwal, Jaeho Choi, Wen Shan Wang, Ravindra Lal, Benjamin Penn, Donald Frazier

Proceedings Volume 3793, (1999) https://doi.org/10.1117/12.351422

KEYWORDS: Crystals, Nonlinear crystals, Interfaces, Harmonic generation, Nonlinear optics, Crystal optics, Potassium, Organic materials, Transient nonlinear optics, Imaging systems

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Proceedings Article | 28 June 1999 Paper

Growth and morphology of the nonlinear optical crystal 3-methoxy-4-hydroxy-benzaldehyde (MHBA)

Leroy Salary, Ravindra Lal, Wen Shan Wang, Mohan Aggarwal, Benjamin Penn

Proceedings Volume 3793, (1999) https://doi.org/10.1117/12.351423

KEYWORDS: Crystals, Nonlinear crystals, Organic materials, Nonlinear optics, Crystallography, Bioalcohols, Second-harmonic generation, Polishing, Temperature metrology, Calorimetry

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Proceedings Article | 6 July 1998 Paper

Laser and Mach-Zehnder interferometry for in-situ monitoring of crystal growth and concentration variation

Yong-Kee Kim, B. Reddy, Ravindra Lal

Proceedings Volume 3479, (1998) https://doi.org/10.1117/12.316447

KEYWORDS: Crystals, Laser crystals, Signal detection, Laser interferometry, Refractive index, Sensors, Interferometry, Interfaces, Crystal optics, Mach-Zehnder interferometers

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SPIE Journal Paper | 1 February 1998

Optical heterodyne interferometry technique for solution crystal growth rate measurement

Yong-Kee Kim, B. Reddy, T George, Ravindra Lal

OE, Vol. 37, Issue 02, (February 1998) https://doi.org/10.1117/12.10.1117/1.601861

KEYWORDS: Crystals, Heterodyning, Interferometry, Thermoelectric materials, Copper, Temperature metrology, Laser crystals, Sensors, Power supplies, In situ metrology

Proceedings Article | 17 October 1994 Paper

Triglycine sulfate (TGS) crystals for pyroelectric infrared detecting devices

Ravindra Lal, Ashok Batra

Proceedings Volume 2269, (1994) https://doi.org/10.1117/12.188653

KEYWORDS: Crystals, Infrared detectors, Sensors, Infrared radiation, Dielectrics, Thermography, Sensor performance, Infrared sensors, Polishing, Surface finishing

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Proceedings Article | 1 December 1991 Paper

Particle image velocimetry experiments for the IML-I spaceflight

James Trolinger, Ravindra Lal, Ashok Batra, D. McIntosh

Proceedings Volume 1557, (1991) https://doi.org/10.1117/12.49588

KEYWORDS: Particles, Crystals, Holograms, Convection, Holography, Phase shifts, Microfluidics, Particle image velocimetry, Velocimetry, Diffusion

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Proceedings Article | 1 December 1991 Paper

Ground-based experiments on the growth and characterization of L-arginine phosphate crystals

S. Rao, C. Cao, Ashok Batra, Ravindra Lal, Tripty Mookherji

Proceedings Volume 1557, (1991) https://doi.org/10.1117/12.49607

KEYWORDS: Crystals, Laser crystals, Etching, Refractive index, Distortion, Nonlinear crystals, Astronomical imaging, Convection, Laser induced damage, Diffusion

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Proceedings Article | 1 December 1991 Paper

Compact spaceflight solution crystal-growth system

James Trolinger, Ravindra Lal, Chandra Vikram, William Witherow

Proceedings Volume 1557, (1991) https://doi.org/10.1117/12.49604

KEYWORDS: Crystals, Holographic optical elements, Diagnostics, Semiconductor lasers, Fiber optics, Control systems, Laser crystals, Holography, Video, Beam splitters

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Proceedings Article | 1 December 1991 Paper

High-resolution synchrotron x-radiation diffraction imaging of crystals grown in microgravity and closely related terrestrial crystals

Bruce Steiner, Ronald Dobbyn, David Black, Harold Burdette, Masao Kuriyama, Richard Spal, Lodewijk Van den Berg, Archibald Fripp, Richard Simchick, Ravindra Lal, Ashok Batra, David Matthiesen, Brian Ditchek

Proceedings Volume 1557, (1991) https://doi.org/10.1117/12.49594

KEYWORDS: Crystals, Diffraction, Tin, Sensors, Synchrotrons, Lead, Astronomical imaging, Gallium arsenide, Image resolution, Sensor performance

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SPIE Journal Paper | 1 October 1991

Holographic instrumentation for monitoring crystal growth in space

James Trolinger, Ravindra Lal, Ashok Batra

OE, Vol. 30, Issue 10, (October 1991) https://doi.org/10.1117/12.10.1117/12.55954

KEYWORDS: Crystals, Particles, Holographic optical elements, Holography, Convection, Aerospace engineering, Tomography, Refractive index, Holograms, Mirrors

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Proceedings Article | 1 January 1991 Paper

Holographic instrumentation for monitoring crystal growth in space

James Trolinger, Ravindra Lal, Ashok Batra

Proceedings Volume 1332, (1991) https://doi.org/10.1117/12.51067

KEYWORDS: Crystals, Particles, Holography, Holographic optical elements, Aerospace engineering, Convection, Optical testing, Tomography, Refractive index, Laser crystals

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Showing 5 of 26 publications

Proceedings Volume Editor (6)

SPIE Conference Volume | 31 August 2005

Operational Characteristics and Crystal Growth of Nonlinear Optical Materials II

SPIE Conference Volume | 25 October 2002

Crystal Materials for Nonlinear Optical Devices and Microgravity Science

SPIE Conference Volume | 29 September 2000

Optical Devices and Diagnostics in Materials Science

SPIE Conference Volume | 23 June 2000

Novel Materials and Crystal Growth Techniques for Nonlinear Optical Devices: A Critical Review

SPIE Conference Volume | 28 June 1999

Operational Characteristics and Crystal Growth of Nonlinear Optical Materials

Showing 5 of 6 publications

Conference Committee Involvement (20)

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XIII

11 August 2019 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XII

19 August 2018 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI

6 August 2017 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications X

28 August 2016 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IX

9 August 2015 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VIII

17 August 2014 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VII

25 August 2013 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VI

12 August 2012 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V

21 August 2011 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV

1 August 2010 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III

2 August 2009 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II

12 August 2008 | San Diego, California, United States

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications

26 August 2007 | San Diego, California, United States

Operational Characteristics and Crystal Growth of Nonlinear Optical Materials III

31 July 2005 | San Diego, California, United States

Infrared Detector Materials and Devices

4 August 2004 | Denver, Colorado, United States

Crystal Materials for Nonlinear Optical Devices (NLO) Microgravity Science

8 July 2002 | Seattle, WA, United States

Optical Devices and Diagnostics in Materials Science

1 August 2000 | San Diego, CA, United States

Critical Reviews of Technology: Novel Materials and Crystal Growth Techniques for Nonlinear Optical Devices

23 January 2000 | San Jose, CA, United States

Operational Characteristics and Crystal Growth of Nonlinear Optical Materials

19 July 1999 | Denver, CO, United States

Crystal Growth in Space and Related Optical Diagnostics

22 July 1991 | San Diego, CA, United States

Showing 5 of 20 Conference Committees

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