littrow prism मीनिंग इन हिंदी

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The Littrow prism was a half-prism, which had a mirrored face.
Use of a tungsten light source with the quartz Littrow prism as a monochromator was reported to minimize light scattering within the instrument.
This can be done by adjusting the spectral response of the mirrors or by using a dispersive element ( Littrow prism ) in the cavity.
The IR-1 used a Littrow prism mounting featuring a single rock salt prism with a mirrored back, and an analog galvanometer for presenting results.
In it, Cary and Beckman compared designs for a modified self-collimating quartz Fery prism, a mirror-collimated quartz Littrow prism, and various gratings.
Typically Littrow prisms are used in lasers at the end of an optical cavity to offer fine adjustment of the laser's output frequency by altering the angle of incidence.