Monolithic measurement of optical gain and absorption in PbTe

An integrated technique for measuring optical gain and absorption is described. The gain and absorption coefficients are measured as a function of wavelength in PbTe near the direct band gap (∼5.75 μm at 77 °K). It is possible to measure optical gains of up to 100 cm−1 and absorption coefficients up...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied physics 1975-02, Vol.46 (2), p.952-954
Main Authors: Cross, Peter S., Oldham, W. G.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An integrated technique for measuring optical gain and absorption is described. The gain and absorption coefficients are measured as a function of wavelength in PbTe near the direct band gap (∼5.75 μm at 77 °K). It is possible to measure optical gains of up to 100 cm−1 and absorption coefficients up to 300 cm−1. The usefulness to a theoretical analysis of the well−correlated gain and absorption data obtained by this method is discussed with a comparison of experimental data with a simple parabolic band theory.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.321624