Effect of Al mole fraction on decay profile of photoinduced IR absorption and the determination of the critical value of xc for AlxGa1-xAs

Wubao B. Wang; Robert R. Alfano; David M. Szmyd; Arthur J. Nozik

doi:10.1117/12.137671

21 October 1992 Effect of Al mole fraction on decay profile of photoinduced IR absorption and the determination of the critical value of x_c for Al_xGa_1-xAs

Wubao B. Wang, Robert R. Alfano, David M. Szmyd, Arthur J. Nozik

Author Affiliations +

Proceedings Volume 1677, Ultrafast Lasers Probe Phenomena in Semiconductors and Superconductors; (1992) https://doi.org/10.1117/12.137671
Event: Semiconductors '92, 1992, Somerset, NJ, United States

Abstract

The hot carrier dynamics in the satellite X valley in Al_xGa_1-xAs was measured by femtosecond pump-probe infrared absorption spectroscopy. The dynamics of the X valley electrons for samples with x = 0.439. The critical value of x_c corresponding to the direct-to-indirect band gap transition for Al_xGa_1-xAs was determined to be 0.412 +/- 0.006.

Citation Download Citation

Wubao B. Wang, Robert R. Alfano, David M. Szmyd, and Arthur J. Nozik "Effect of Al mole fraction on decay profile of photoinduced IR absorption and the determination of the critical value of x_c for Al_xGa_1-xAs", Proc. SPIE 1677, Ultrafast Lasers Probe Phenomena in Semiconductors and Superconductors, (21 October 1992); https://doi.org/10.1117/12.137671

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available