Dr. Grigory Adamovsky Profile

Dr. Grigory Adamovsky

Engineer at NASA Glenn Research Ctr

SPIE Involvement:

Author

Publications (29)

Proceedings Article | 15 October 2012 Paper

Competition of linearly polarized modes in fibers with Bragg gratings over a wide temperature range

Sergei Lyuksyutov, Grigory Adamovsky, Jeffrey Mackey, Bertram Floyd, Ujitha Abeywickrema, Igor Fedin

Proceedings Volume 8497, 849707 (2012) https://doi.org/10.1117/12.928667

KEYWORDS: Fiber Bragg gratings, Optical fibers, Temperature metrology, Refractive index, Visible radiation, Light wave propagation, Diffraction gratings, Mathematical modeling, Sensors, Physics

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Proceedings Article | 22 September 2010 Paper

Polarization dependent coupling of whispering gallery modes in microspheres

G. Adamovsky, S. Wrbanek, B. Floyd, M. Crotty

Proceedings Volume 7750, 77500Q (2010) https://doi.org/10.1117/12.873967

KEYWORDS: Optical fibers, Polarizers, Polarization, Radio propagation, Semiconductor lasers, Light wave propagation, Waveguides, Wave propagation, Photodetectors, Dielectric polarization

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Proceedings Article | 19 October 2006 Paper

Light-driven polymer actuators for propulsion and light control

LaQuieta Huey, Sergey Sarkisov, Michael Curley, Grigory Adamovsky, Jai-Ching Wang

Proceedings Volume 6374, 637402 (2006) https://doi.org/10.1117/12.684337

KEYWORDS: Actuators, Ferroelectric polymers, Reflectors, Polymers, Mirrors, Polymeric actuators, Laser beam diagnostics, Polymer thin films, Switches, Optical fibers

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SPIE Journal Paper | 1 March 2006

Light-driven actuators based on polymer films

Sergey Sarkisov, Michael Curley, LaQuieta Huey, Aisha Fields, Sergey Sarkisov II, Grigory Adamovsky

OE, Vol. 45, Issue 03, 034302, (March 2006) https://doi.org/10.1117/12.10.1117/1.2185093

KEYWORDS: Actuators, Ferroelectric polymers, Optical fibers, Polymers, Polymer thin films, Polymeric actuators, Mirrors, Clocks, Optical engineering, Energy efficiency

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Proceedings Article | 5 December 2005 Paper

Light-driven polymer actuators

Sergey Sarkisov, LaQuieta Huey, Michael Curley, Grigory Adamovsky, Deborah Pekker, Jai-Ching Wang

Proceedings Volume 6048, 604801 (2005) https://doi.org/10.1117/12.626527

KEYWORDS: Actuators, Ferroelectric polymers, Mirrors, Polymers, Polymeric actuators, Laser beam diagnostics, Polymer thin films, Switches, Optical fibers, Beam shaping

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Proceedings Article | 16 May 2005 Paper

Processing of signals from fiber Bragg gratings using unbalanced interferometers

Grigory Adamovsky, Jeff Juergens, Bertram Floyd

Proceedings Volume 5758, (2005) https://doi.org/10.1117/12.601808

KEYWORDS: Interferometers, Fiber Bragg gratings, Signal processing, Sensors, Temperature metrology, Crystals, Fiber optics sensors, Refractive index, Geometrical optics, Photodetectors

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Proceedings Article | 25 October 2004 Paper

Light-driven polymer actuator

Sergey Sarkisov, Michael Curley, Aisha Fields, Grigory Adamovsky

Proceedings Volume 5602, (2004) https://doi.org/10.1117/12.572452

KEYWORDS: Actuators, Ferroelectric polymers, Polymers, Polymeric actuators, Optical fibers, Polymer thin films, Electrodes, Beam shaping, Clocks, Optical components

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Proceedings Article | 8 March 2004 Paper

Performance evaluation of fiber Bragg gratings at elevated temperatures

Jeffrey Juergens, Grigory Adamovsky, Bertram Floyd

Proceedings Volume 5272, (2004) https://doi.org/10.1117/12.525232

KEYWORDS: Fiber Bragg gratings, Sensors, Fiber optics sensors, Environmental sensing, Refractive index, Structured optical fibers, Optical fibers, Optical filters, Light wave propagation, Polymers

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The development of integrated fiber optic sensors for smart propulsion systems demands that the sensors be able to perform in extreme environments. In order to use fiber optic sensors effectively in an extreme environment one must have a thorough understanding of the sensor’s limits and how it responds under various environmental conditions. The sensor evaluation currently involves examining the performance of fiber Bragg gratings at elevated temperatures. Fiber Bragg gratings (FBG) are periodic variations of the refractive index of an optical fiber. These periodic variations allow the FBG to act as an embedded optical filter passing the majority of light propagating through a fiber while reflecting back a narrow band of the incident light. The peak reflected wavelength of the FBG is known as the Bragg wavelength. Since the period and width of the refractive index variation in the fiber determines the wavelengths that are transmitted and reflected by the grating, any force acting on the fiber that alters the physical structure of the grating will change what wavelengths are transmitted and what wavelengths are reflected by the grating. Both thermal and mechanical forces acting on the grating will alter its physical characteristics allowing the FBG sensor to detect both temperature variations and physical stresses, strain, placed upon it. This ability to sense multiple physical forces makes the FBG a versatile sensor. This paper reports on test results of the performance of FBGs at elevated temperatures. The gratings looked at thus far have been either embedded in polymer matrix materials or freestanding with the primary focus of this paper being on the freestanding FBGs. Throughout the evaluation process, various parameters of the FBGs performance were monitored and recorded. These parameters include the peak Bragg wavelength, the power of the Bragg wavelength, and total power returned by the FBG. Several test samples were subjected to identical test conditions to allow for statistical analysis of the data. Test procedures, calibrations, and referencing techniques are presented in the paper along with directions for future research.

SPIE Journal Paper | 1 February 2003

Detection sensitivity optimization of optical signals generated by fiber optic Bragg gratings under dynamic excitation

Grigory Adamovsky, John Lekki, James Lock

OE, Vol. 42, Issue 02, (February 2003) https://doi.org/10.1117/12.10.1117/1.1534593

KEYWORDS: Interferometers, Optics manufacturing, Signal detection, Fiber Bragg gratings, Fiber optics, Sensors, Ferroelectric materials, Mirrors, Signal generators, Michelson interferometers

Proceedings Article | 15 July 2002 Paper

Evaluation of mechanical modal characteristics using optical techniques

John Lekki, Grigory Adamovsky, Patrick Flanagan, Kenneth Weiland

Proceedings Volume 4701, (2002) https://doi.org/10.1117/12.474652

KEYWORDS: Sensors, Fiber optics sensors, Holograms, Holography, Fiber Bragg gratings, Copper, Demodulation, Fiber optics, Photodiodes, Aerospace engineering

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Proceedings Article | 13 December 2001 Paper

Optical actuators based on photorefractive materials controlled by holographic gratings

Aisha Fields, Michael Curley, Sergey Sarkisov, Nickolai Kukhtarev, Mykola Kulishov, Grigory Adamovsky, Cydale Smith, Lewis Moore

Proceedings Volume 4455, (2001) https://doi.org/10.1117/12.450426

KEYWORDS: Diffraction gratings, Holography, Diffraction, Crystals, Laser beam diagnostics, Volume holography, Laser crystals, Lithium niobate, Beam splitters, Actuators

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Proceedings Article | 13 December 2001 Paper

Connection of two-dimensional optic fiber arrays using optical beam self-trapping in photocurable media

Sergey Sarkisov, Vladimir Grimalsky, Michael Curley, Grigory Adamovsky, Claud Martin

Proceedings Volume 4455, (2001) https://doi.org/10.1117/12.450431

KEYWORDS: Bridges, Ultraviolet radiation, Refractive index, Gradient-index optics, Optical fibers, Polymers, Microscopes, Optical arrays, Fusion splicing, Beam propagation method

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Proceedings Article | 7 December 2001 Paper

Polymer single-arm optical waveguide interferometer for detection of toxic industrial materials

Sergey Sarkisov, Michael Curley, Grigory Adamovsky

Proceedings Volume 4461, (2001) https://doi.org/10.1117/12.449842

KEYWORDS: Absorption, Sensors, Waveguides, Interferometers, Polymers, Refractive index, Polymer thin films, Wave propagation, Polymer multimode waveguides, Polymeric sensors

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Proceedings Article | 6 August 2001 Paper

Demodulation system for fiber optic Bragg grating dynamic pressure sensing

John Lekki, Grigory Adamovsky, Bertram Floyd

Proceedings Volume 4328, (2001) https://doi.org/10.1117/12.435517

KEYWORDS: Sensors, Signal processing, Fiber Bragg gratings, Interferometers, Fiber optics, Fiber optics sensors, Mirrors, Demodulation, Ferroelectric materials, Sensing systems

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Proceedings Article | 29 November 2000 Paper

Polymer-based optical single-arm waveguide interferometer as a chemical sensor

Darnell Diggs, Sergey Sarkisov, Michael Curley, Grigory Adamovsky

Proceedings Volume 4106, (2000) https://doi.org/10.1117/12.408527

KEYWORDS: Sensors, Waveguides, Polymers, Interferometers, Absorption, Refractive index, Polymer thin films, Polymeric sensors, Temperature metrology, Polymer multimode waveguides

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Proceedings Article | 13 November 2000 Paper

Optical actuators based on photorefractive materials controlled by moving holographic gratings

Michael Curley, Aisha Fields, Sergey Sarkisov, Nickolai Kukhtarev, Mykola Kulishov, Grigory Adamovsky

Proceedings Volume 4104, (2000) https://doi.org/10.1117/12.406481

KEYWORDS: Crystals, Holography, Actuators, Beam splitters, Diffraction gratings, Lithium niobate, Sensors, Optical actuators, Diffraction, Laser crystals

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SPIE Journal Paper | 1 March 2000

Dark spatial solitons in photopolymer films for optical interconnections

Sergey Sarkisov, Michael Curley, Darnell Diggs, Aaron Wilkosz, Vladimir Grimalsky, Grigory Adamovsky

OE, Vol. 39, Issue 03, (March 2000) https://doi.org/10.1117/12.10.1117/1.602406

KEYWORDS: Laser beam diagnostics, Spatial solitons, Beam propagation method, Refractive index, Solitons, Optical simulations, Waveguides, Optical interconnects, Optical fibers, Polymers

Proceedings Article | 9 July 1999 Paper

Fiber optic distributed sensing systems for harsh aerospace environments

Eric Udd, Whitten Shulz, John Seim, Mike Morrell, Thomas Weaver, Jeff Bush, Grigory Adamovsky

Proceedings Volume 3674, (1999) https://doi.org/10.1117/12.351549

KEYWORDS: Fiber optics sensors, Fabry–Perot interferometers, Sensors, Environmental sensing, Demodulation, Temperature metrology, Mirrors, Fiber optics, Aerospace engineering, Sensing systems

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Proceedings Article | 10 March 1999 Paper

Fabrication of MEMS using liquid jet dispensing technique

Sergey Sarkisov, Abdalla Darwish, Hossin Abdeldayem, Grigory Adamovsky, Mykola Kulishov, Curtis Banks, JaChing Wang

Proceedings Volume 3680, (1999) https://doi.org/10.1117/12.341278

KEYWORDS: Liquids, Microelectromechanical systems, Polymers, Head, Ultraviolet radiation, Fabrication, Ferroelectric polymers, Microscopes, Objectives, Electrodes

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Proceedings Article | 21 July 1998 Paper

Photonic elements in smart systems for use in aerospace platforms

Grigory Adamovsky, Robert Baumbick, Massood Tabib-Azar

Proceedings Volume 3330, (1998) https://doi.org/10.1117/12.317001

KEYWORDS: Sensing systems, Sensors, Control systems, Aerospace engineering, Distributed computing, Actuators, Free space optics, Photodetectors, Computing systems, Interferometers

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Proceedings Article | 17 April 1998 Paper

Optical sensor based on the single-arm dual-mode polymeric waveguide interferometer

Sergey Sarkisov, Michael Curley, Darnell Diggs, Huaisong Guo, Ronald Clark, Grigory Adamovsky

Proceedings Volume 3281, (1998) https://doi.org/10.1117/12.305432

KEYWORDS: Waveguides, Sensors, Interferometers, Refractive index, Polymers, Environmental sensing, Absorption, Polymer multimode waveguides, Polymeric sensors, Interferometry

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Proceedings Article | 21 November 1997 Paper

Laser beam propagation through inhomogeneous media with shock-like profiles: modeling and computing

Grigory Adamovsky, Nathan Ida

Proceedings Volume 3172, (1997) https://doi.org/10.1117/12.293410

KEYWORDS: Wave propagation, Refractive index, Gaussian beams, Radio propagation, Laser beam propagation, Beam propagation method, Atmospheric propagation, Magnetism, Light wave propagation, Near field diffraction

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Proceedings Article | 22 September 1997 Paper

Plastic integrated optical components made by molding, liquid jet delineation, and photoprocessing

Sergey Sarkisov, Zedric Teague, Andre Taylor, Abdalla Darwish, Putcha Venkateswarlu, Hossin Abdeldayem, Donald Frazier, Grigory Adamovsky, Jack McCain, George Keller

Proceedings Volume 3135, (1997) https://doi.org/10.1117/12.279146

KEYWORDS: Polymers, Waveguides, Integrated optics, Liquids, Ultraviolet radiation, Diffraction gratings, Refractive index, Polymer thin films, Polymer multimode waveguides, Diffraction

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Proceedings Article | 12 July 1996 Paper

Low-gravity factor in fabrication of thin film nonlinear optical waveguides based on photocrosslinkable polyimide

Sergey Sarkisov, Zedric Teague, Putcha Venkateswarlu, Hossin Abdeldayem, Donald Frazier, Grigory Adamovsky

Proceedings Volume 2809, (1996) https://doi.org/10.1117/12.244318

KEYWORDS: Ultraviolet radiation, Refractive index, Waveguides, Thin film coatings, Absorbance, Polymers, Polymer thin films, Absorption, Prisms, Gradient-index optics

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Proceedings Article | 29 September 1995 Paper

Optical techniques for shock visualization and detection

Grigory Adamovsky, David Johnson

Proceedings Volume 2546, (1995) https://doi.org/10.1117/12.221543

KEYWORDS: Visualization, Scanners, Beam splitters, Throat, Charge-coupled devices, CCD cameras, Prisms, Laser systems engineering, Collimation, Cameras

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Proceedings Article | 18 March 1994 Paper

Theory and experiments for detecting shock locations

S. Hariharan, David Johnson, Grigory Adamovsky

Proceedings Volume 2122, (1994) https://doi.org/10.1117/12.171292

KEYWORDS: Refractive index, Throat, Collimation, Inverse optics, Inverse problems, Charge-coupled devices, Radio propagation, Refraction, Transmission electron microscopy, Laser optics

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Proceedings Article | 9 February 1993 Paper

RF-modulated fiber optic sensing systems and their applications

Grigory Adamovsky, John Eustace

Proceedings Volume 1799, (1993) https://doi.org/10.1117/12.141343

KEYWORDS: Modulation, Sensors, Fiber optics sensors, Sensing systems, Signal detection, Interferometers, Head, Photodetectors, Signal generators, Fiber optics

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Proceedings Article | 1 January 1991 Paper

Optical techniques for determination of normal shock position in supersonic flows for aerospace applications

Grigory Adamovsky, John Eustace

Proceedings Volume 1332, (1991) https://doi.org/10.1117/12.51125

KEYWORDS: Sensors, Charge-coupled devices, Sensing systems, Receivers, Mirrors, Visualization, Photodetectors, Aerospace engineering, Ions, Optical testing

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Proceedings Article | 1 January 1991 Paper

Photoelastic transducer for high-temperature applications

Alex Redner, Grigory Adamovsky, Laurence Wesson

Proceedings Volume 1332, (1991) https://doi.org/10.1117/12.51128

KEYWORDS: Transducers, Sensors, Photoelasticity, Polarization, Polarizers, Optical fiber cables, Optical testing, Optical inspection, Birefringence, Lead

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