NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Intersubband Transitions in InAs/AlSb Quantum WellsWe have studied intersubband transitions in InAs/AlSb quantum wells experimentally and theoretically. Experimentally, we performed polarization-resolved infrared absorption spectroscopy to measure intersubband absorption peak frequencies and linewidths as functions of temperature (from 4 K to room temperature) and quantum well width (from a few nm to 10 nm). To understand experimental results, we performed a self-consistent 8-band k-p band-structure calculation including spatial charge separation. Based on the calculated band structure, we developed a set of density matrix equations to compute TE and TM optical transitions self-consistently, including both interband and intersubband channels. This density matrix formalism is also ideal for the inclusion of various many-body effects, which are known to be important for intersubband transitions. Detailed comparison between experimental data and theoretical simulations is presented.
Document ID
20030022786
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Li, J. (NASA Ames Research Center Moffett Field, CA, United States)
Koloklov, K. (NASA Ames Research Center Moffett Field, CA, United States)
Ning, C. Z. (NASA Ames Research Center Moffett Field, CA, United States)
Larraber, D. C. (Rice Univ. Houston, TX, United States)
Khodaparast, G. A. (Rice Univ. Houston, TX, United States)
Kono, J. (Rice Univ. Houston, TX, United States)
Ueda, K. (Osaka Univ. Osaka, Japan)
Nakajima, Y. (Osaka Univ. Osaka, Japan)
Sasa, S. (Osaka Univ. Osaka, Japan)
Inoue, M. (Osaka Univ. Osaka, Japan)
Date Acquired
September 7, 2013
Publication Date
January 20, 2003
Subject Category
Electronics And Electrical Engineering
Meeting Information
Meeting: MRS Fall Meeting
Location: Boston, MA
Country: United States
Start Date: January 1, 2003
Sponsors: Materials Research Society
Funding Number(s)
CONTRACT_GRANT: DTT559-99-D-00437
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available