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Selective mirrors for He-Ne lasers are used in optics for suppressing unwanted lines of laser generation. They are prepared with a residual coefficient of reflection λ2, less than 1%, which allows full suppression of the laser generation for λ2. With this method, a standard mirror coating λ1 and a layer of material with a low refraction index, lightened for λ2 are layered on a quartz glass pad, where λ1 and λ2 are the working and suppressed wave lengths.
BG92152A1990-06-061990-06-06Method for the production of selective mirrors for he- ne lasers
BG50461A1
(en)