With a neat energy level diagram describe the construction and working of He-Ne laser. What are its merits and demerits ?

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written 6.9 years ago by

vermavarsha432 • 1.0k

modified 3.8 years ago by

pradnyanabar2613 ★ 5.2k

engineering physics

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written 3.8 years ago by

pradnyanabar2613 ★ 5.2k

He-Ne laser

It consists of a long discharge tube of length 50 cm and diameter 1 cm. The tube is filled with a mixture of He and Ne in the ratio of 10:1. Electrodes are provided to produce a discharge in the gas and they are connected to a high …

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