Feb 10 2011
Laser Components, producer of broad range of laser and optoelectronics products, has introduced a series of Grazing Incidence gratings from Optometrics, a company specializing in quality optical components such as lenses, gratings, laser optics and filters.
The new series of Grazing Incidence gratings can play a significant role in dye laser system operation.
Grazing Incidence Gratings Line from Optometrics
The Grazing Incidence is an uncomplicated and economical optical set up that could enhance and regulate the resolution of a dye laser. A holographic grating, operating as dye laser cavity's end reflector, is placed in such a manner that the laser radiation hits the grating that is nearly perpendicular to the grating normal. When the angle of incidence nears 89„a, a comparatively large surface of the grating is lighted by the laser beam and significantly enhances the resolving power and angular dispersion.
The sizes of the mirror and grazing are increased up to 12.7x50.8 mm for grazing incidence. The grating is preset and tuning is attained by mirror rotation. The laser beam is diffracted twofold in grating incidence and produces increased resolution. Reduced grating efficiency is typical of the grazing incidence setup. However, through ultra gain of the dyes utilized, the low grating efficiency is balanced.