Abstract
The authors report the demonstration of normal incident infrared detection using intervalence-band absorption in Si/sub 1-x/Ge/sub x//Si multiple quantum wells. In this case, the transition occurs between different hole bands due to the mixing of the s-like Gamma -conduction band Bloch state with p-like hole bands, particularly at large k values. This mechanism is different from the previously reported free-carrier absorption process.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.