Diffraction limited CW optically pumped lasers

Author

Schubert, Michael R. ; Durschlag, Mark S. ; DeTemple, Thomas A.

Author_Institution

Calculator Products Division, Hewlett Packard Corporation, Loveland, CO

Volume

Issue

fYear

1977

fDate

6/1/1977 12:00:00 AM

Firstpage

455

Lastpage

459

Abstract

The far infrared spectral characteristics of inductive metal mesh dielectric hybrid mirrors were investigated. From experimental and theoretical studies, the mirrors were found to exhibit etalon effects due to the finite Si substrate thickness and to have two separate diffraction conditions. With grid spacing $g$ and substrate index of refraction $n$ , for $n^{-1} < g/\\lambda < 1$ the mirrors diffract in transmission while for $g/\\lambda > 1$ the mirrors diffract both in transmission and reflection. Using both inductive and capacitive mesh mirrors, EH11outputs have been obtained at the milliwatt level in the range 70 μm to 1.2 mm. Powers in excess of 10 mW were obtained from CH3OH at 96 and 118 μm, HCOOH at 393 μm, CH3I at 447 μm, and CH3F at 496μm.

Keywords

Dielectric substrates; Infrared spectra; Laser excitation; Laser theory; Mirrors; Optical diffraction; Optical pumping; Optical reflection; Optical refraction; Pump lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.1977.1069370

Filename

1069370

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1069397