1
Brian L Hoekstra, Leonid B Glebov, Oleg M Efimov: Method and apparatus for separating non-metallic substrates utilizing a laser initiated scribe. Accudyne Display and Semiconductor Systems, Banner & Witcoff, April 3, 2001: US06211488 (119 worldwide citation)

An apparatus and method for physically separating non-metallic substrates forms a microcrack in the substrate and controllingly propagates the microcrack. An initial mechanical or pulsed laser scribing device forms a microcrack in the substrate. If a pulsed laser is used, it forms a crack inside the ...


2
Oleg M Efimov, Leonid B Glebov, Vadim I Smirnov: High efficiency volume diffractive elements in photo-thermo-refractive glass. University of Central Florida, Brian S Steinberger, Law Offices of Brian S Steinberger P A, January 6, 2004: US06673497 (63 worldwide citation)

Novel volume holographic elements were made from Bragg diffractive gratings in photo-thermo-refractive (PTR) glass with absolute diffraction efficiency ranging from greater than approximately 50% up to greater than approximately 93% and total losses below 5%. Both transmitting and reflecting volume ...


3
Oleg M Efimov, Leonid B Glebov, Vadim I Smirnov, Larissa Glebova: Process for production of high efficiency volume diffractive elements in photo-thermo-refractive glass. University of Central Florida, Brian S Steinberger, Law Offices of Brian S Steinberger P A, July 1, 2003: US06586141 (54 worldwide citation)

A novel process is proposed for the volume diffractive element (Bragg grating) fabrication in photosensitive silicate glasses doped with silver, cerium, fluorine, and bromine. The process employs a photo-thermo-refractive (PTR) glass of high purity exposed to ultraviolet (UV) radiation of a He—Cd la ...


4
Leonid B Glebov, Vasile Rotar, Vadim I Smirnov, Sarik Nersisyan, Nelson Tabirian: Optical beam steering and switching by optically controlled liquid crystal spatial light modulator with angular magnification by high efficiency PTR Bragg gratings. University of Central Florida Research Foundation, Brian S Steinberger, Phyllis K Wood, Law Offices of Brian S Steinberger P A, January 29, 2008: US07324286 (30 worldwide citation)

Non-mechanical optical beam steering and switching is produced by optically controlled liquid crystal spatial light modulator with angular magnification by high efficiency volume Bragg gratings recorded in a photosensitive PTR glass. Small angle beam deflection in a photoactive liquid crystal cell i ...


5
Leonid B Glebov, Vadim I Smirnov: Sensitization of photo-thermo-refractive glass to visible radiation by two-step illumination. University of Central Florida Research Foundation, Brian S Steinberger, Phyllis K Wood, Law Offices of Brian S Steinberger P A, February 5, 2008: US07326500 (25 worldwide citation)

Photo-thermo-refractive (PTR) glass is a multi-component silicate glass having photosensitivity in rear UV region. A novel process is disclosed for PTR glass sensitization to visible region by means of two-step illumination followed by thermal development. This disclosed process utilizes a first ill ...


6
Leonid B Glebov, Emilie Flecher, Vadim I Smirnov, Almantas Galvanauskas, Kai Hsiu Liao: Stretching and compression of laser pulses by means of high efficiency volume diffractive gratings with variable periods in photo-thermo-refractive glass. University of Central Florida Research Foundation, University of Michigan, Brian S Steinberger, Phyllis K Wood, Law Offices of Brian S Steinberger P A, September 9, 2008: US07424185 (13 worldwide citation)

High efficiency reflective volume Bragg gratings with chirped gratings recorded in photo-thermo-refractive glass having an absolute diffraction efficiency exceeding 95% in transmitting and reflecting modes are used to stretch and/or compress ultrashort laser pulses with high efficiency. Robustness, ...


7
Leonid B Glebov, Vadim I Smirnov, George Venus: Volume bragg lasers based on high efficiency diffractive elements in photo-thermo-refractive glass. Research Foundation of the University of Central Florida, Brian S Steinberger, Phyllis K Wood, Law Offices of Brian S Steinberger P A, July 1, 2008: US07394842 (3 worldwide citation)

A volume Bragg laser including a resonator comprising photo-thermo-refractive (PTR) volume diffractive elements that can be used in a laser emitting window of transparency of PTR glass to provide control of the lasers spectral and angular parameters, and methods, devices, apparatus and systems relat ...


8
Leonid B Glebov, Vadim I Smirnov, George Venus: Volume Bragg lasers based on high efficiency diffractive elements in photo-thermo-refractive glass. University of Central Florida Research Foundation, Brian S Steinberger, Phyllis K Wood, Law Offices of Brian S Steinberger P A, October 27, 2009: US07609743 (2 worldwide citation)

A volume Bragg laser including a resonator comprising photo-thermo-refractive (PTR) volume diffractive elements that can be used in a laser emitting window of transparency of PTR glass to provide control of the lasers spectral and angular parameters, and methods, devices, apparatus and systems relat ...


9
Oleksiy Andrusyak, Almantas Galvanauskas, Leonid B Glebov, Larissa Glebova, Julien Lumeau, Sergiy Mokhov, Eugeniu Rotari, Vadim I Smirnov, Boris Ya Zeldovich: Laser pulse temporal, spectral and spatial shaping devices based on volume diffractive gratings with spatially variable parameters. University of Central Florida Research Foundation, Optigrate Corporation, Brian S Steinberger, Phyllis K Wood, Law Offices of Brian S Steinberger P A, May 13, 2014: US08724207 (1 worldwide citation)

Recent invention of longitudinally chirped volume Bragg gratings has dramatically changed a design of high power femtosecond lasers. Replacing of bulky pairs of conventional surface gratings with compact and robust chirped volume Bragg gratings for stretching and compression of laser pulses in chirp ...


10
Oleg M Efimov, Leonid B Glebov, Vadim I Smirnov: High efficiency volume diffractive elements in photo-thermo-refractive glass. Brian S Steinberger, April 18, 2002: US20020045104-A1 (1 worldwide citation)

Novel volume holographic elements were made from Bragg diffractive gratings in photo-thermo-refractive (PTR) glass with absolute diffraction efficiency ranging from greater than approximately 50% up to greater than approximately 93% and total losses below 5%. Both transmitting and reflecting volume ...