The 488.0-nm line from an argon ion laser is Doppler broadened to 2.7 10 9 Hz.

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The 488.0-nm line from an argon ion laser is Doppler broadened to 2.7 × 109 Hz. Given that the laser’s mirrors are 1.0 m apart, determine the approximate number of longitudinal modes. Assume the index of refraction of the gas is 1.0.

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Optics

ISBN: 978-0133977226

5th edition

Authors: Eugene Hecht

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