High-efficiency 1.5 mu m thick optical axis grating and its use for laser beam combining
Abbreviated Journal Title
LIQUID-CRYSTALS; POLARIZATION PROPERTIES; EXTERNAL-CAVITY; ALIGNMENT; Optics
We demonstrate an optical axis grating (OAG) recorded in a nematic liquid crystal that yields a higher than 80% diffraction efficiency and over 800:1 switching contrast between diffraction orders for a laser beam of a red wavelength in a material layer only 1.5 mu m thick. The grating was used for combining two laser beams with high efficiency. These observations prove the feasibility of new generation high-efficiency diffractive optical components, which are most promising for infrared and high-power applications owing to their enhanced transparency and reduced thermal effects in thin material layers. (c) 2006 Optical Society of America.
"High-efficiency 1.5 mu m thick optical axis grating and its use for laser beam combining" (2007). Faculty Bibliography 2000s. 7631.