Development of hard filmed laser mirrors
Abstract
Simple expressions are reported for predicting the optical losses of laser mirrors. Based on the standing wave dispersion in the mirrors, a low loss 23 layer hard film mirror was designed. The major features of this design are that the high refractive index films are made of a mixture of TiO2 and ZrO2, and that one or two optimum film pairs are added to the design. It is possible to produce an excellent hard film mirror using ordinary technology which has a loss of less than 0.2% and a reflective index higher than 99.8%.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- November 1982
- Bibcode:
- 1982STIN...8321340G
- Keywords:
-
- Lasers;
- Mirrors;
- Oxide Films;
- Refractivity;
- Titanium Oxides;
- Zirconium Oxides;
- Extinction;
- Optical Properties;
- Standing Waves;
- Thin Films;
- Wave Dispersion;
- Lasers and Masers