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Room temperature observation of the energy levels of mid-infrared quantum well lasers using Fourier transform infrared-surface photovoltage spectroscopy
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Sharma, Tarun Kumar, Fox, Natasha Elizabeth, Hosea, Thomas Jeff Cockburn, Nash, Geoffrey Richard, Coomber, Stuart David, Buckle, Louise, Emeny, Martin Trevor and Ashley, Tim (2008) Room temperature observation of the energy levels of mid-infrared quantum well lasers using Fourier transform infrared-surface photovoltage spectroscopy. Applied Physics Express, Volume 1 (Number 6). Article number 062001. doi:10.1143/APEX.1.062001
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Official URL: http://dx.doi.org/10.1143/APEX.1.062001
Abstract
At room temperature, we demonstrate an unambiguous detection of the ground- and excited-state transitions of mid-infrared GaInSb/AlGaInSb type I quantum well (QW) lasers grown on GaAs using a new technique based on Fourier transform infrared surface photovoltage spectroscopy. It is found that none of the currently established spectroscopic techniques is able to detect even the ground state transition of these mid-infrared QW lasers at room temperature. The spectroscopic results are in reasonable agreement with the laser emission spectra at low temperatures.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science > Engineering | ||||
| Journal or Publication Title: | Applied Physics Express | ||||
| Publisher: | Institute of Pure and Applied Physics | ||||
| ISSN: | 1882-0778 | ||||
| Official Date: | 16 May 2008 | ||||
| Dates: |
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| Volume: | Volume 1 | ||||
| Number: | Number 6 | ||||
| Article Number: | Article number 062001 | ||||
| DOI: | 10.1143/APEX.1.062001 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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