Collimated laser light of wavelength 548 nm is incident on a grating with 1554 lines/mm in the Littrow configuration (not normal incidence). We want to create feedback to the laser from the grating (i.e. 'retroreflection'), in order to tune its wavelength. What angle of incidence on the grating, in degrees, is required to get feedback? [The grating rotates about an axis parallel to the grating grooves]
Compton effect
The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.
Recoil Velocity
The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.
Collimated laser light of wavelength 548 nm is incident on a grating with 1554 lines/mm in the Littrow configuration (not normal incidence). We want to create feedback to the laser from the grating (i.e. 'retroreflection'), in order to tune its wavelength. What angle of incidence on the grating, in degrees, is required to get feedback? [The grating rotates about an axis parallel to the grating grooves]
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