Abstract
The generation of coherent far infrared radiation in quantum semiconductor structures has recently attracted considerable attention. Different physical means of generating far ir have been explored such as sequential resonant tunneling,1 coherent charge oscillations in coupled wells2 and Bloch oscillations in superlattices.3 In this paper we report the first observation of far-infrared radiation (λ ~ 60 μm) by difference frequency generation associated with intersubband transitions in coupled quantum wells.
© 1994 Optical Society of America
PDF ArticleMore Like This
Jerome Faist, Federico Capasso, Carlo Sirtori, Deborah L. Sivco, Albert L. Hutchinson, Sung Nee G. Chu, and Alfred Y. Cho
CThF5 Conference on Lasers and Electro-Optics (CLEO:S&I) 1994
E. L. Martinet, G. L. Woods, H. C. Chui, J. S. Harris, M. M. Fejer, C. A. Rella, and B. A. Richman
QMB5 International Quantum Electronics Conference (IQEC) 1994
E. Rosencher, N. Laurent, and B. Vinter
JThC5 Conference on Lasers and Electro-Optics (CLEO:S&I) 1994