For a He-Cd laser with a wavelength of 325 nm, if the length of the resonator is 30 cm, find: a. Frequency difference between longitudinal modes (mode spacing b. Number of modes c. Frequency of the laser light

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For a He-Cd laser with a wavelength of 325 nm, if the
length of the resonator is 30 cm, find:
a. Frequency difference between longitudinal modes
(mode spacing
b. Number of modes
c. Frequency of the laser light
Transcribed Image Text:For a He-Cd laser with a wavelength of 325 nm, if the length of the resonator is 30 cm, find: a. Frequency difference between longitudinal modes (mode spacing b. Number of modes c. Frequency of the laser light
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