Title :
Advanced narrow band filters in PTR glass for Raman spectroscopy
Author :
Smirnov, Vladimir ; Mokhun, Oleksiy ; Koulechov, Valery ; Glebov, Alexei ; Glebov, Leonid
Author_Institution :
OptiGrate Corp, Oviedo, FL, USA
fDate :
June 30 2014-July 4 2014
Abstract :
Summary form only given: Volume Bragg gratings in Photo-Thermo-Refractive (PTR) glass enable unmatched filter performance for RAMAN spectroscopy. High diffraction Volume Bragg gratings in Photo-Thermo-Refractive (PTR) glass enable unmatched filter performance for RAMAN spectroscopy. High diffraction efficiency combined with ultra-narrow bandwidth provide simultaneous access to Stokes and anti-Stokes Raman modes with frequencies as low as 5 cm-1. Recent advances in the technology of the diffractive elements in PTR glass enabled fabrication of Raman filters with optical density OD>5.efficiency combined with ultra-narrow bandwidth provide simultaneous access to Stokes and anti-Stokes Raman modes with frequencies as low as 5 cm-1. Recent advances in the technology of the diffractive elements in PTR glass enabled fabrication of Raman filters with optical density OD>5.
Keywords :
Bragg gratings; Raman spectra; diffractive optical elements; light diffraction; optical fabrication; optical filters; optical glass; photorefractive materials; photothermal effects; PTR glass; Raman filter fabrication; Raman spectroscopy; antiStokes Raman modes; diffractive elements; narrow band filters; optical density; photo-thermo-refractive glass; ultranarrow bandwidth; volume Bragg gratings; Bragg gratings; Glass; Optical device fabrication; Optical filters; Optical refraction;
Conference_Titel :
Laser Optics, 2014 International Conference
Conference_Location :
Saint Petersburg
Print_ISBN :
978-1-4799-3884-1
DOI :
10.1109/LO.2014.6886364
