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Frequency manipulation of THz bound-to-continuum quantum-cascade lasers

Frequency manipulation of THz bound-to-continuum quantum-cascade lasers
Frequency manipulation of THz bound-to-continuum quantum-cascade lasers
The laser emission frequencies of existing designs are controlled by uniform thickness transformations. Experimental results from a total of ten wafers are presented demonstrating a predictable shift in the emission wavelength concurrent with an anticipated alteration in electrical transport. Wafers based on a design around 2.9 THz produced a frequency shift of 0.35 THz. Furthermore, a 2.5% thickness reduction in our 2-THz design saw a 0.1-THz frequency shift and changes in electrical transport predicted by simulations.
1041-1135
303-305
Freeman, J.R.
63598151-0e37-49ca-aded-059b3be25249
Worrall, C.
416f4c0a-bbe2-4398-8c08-202ebd97ff43
Apostolopoulos, V.
8a898740-4c71-4040-a577-9b9d70530b4d
Alton, J.
741fe312-78ba-424b-8809-47f6012ead87
Beere, H.
6cba2944-fac7-41b3-8350-00fa364036db
Ritchie, D.A.
83562b7e-0986-4822-9cfe-8c4ac95596c7
Freeman, J.R.
63598151-0e37-49ca-aded-059b3be25249
Worrall, C.
416f4c0a-bbe2-4398-8c08-202ebd97ff43
Apostolopoulos, V.
8a898740-4c71-4040-a577-9b9d70530b4d
Alton, J.
741fe312-78ba-424b-8809-47f6012ead87
Beere, H.
6cba2944-fac7-41b3-8350-00fa364036db
Ritchie, D.A.
83562b7e-0986-4822-9cfe-8c4ac95596c7

Freeman, J.R., Worrall, C., Apostolopoulos, V., Alton, J., Beere, H. and Ritchie, D.A. (2008) Frequency manipulation of THz bound-to-continuum quantum-cascade lasers. IEEE Photonics Technology Letters, 20 (4), 303-305. (doi:10.1109/lpt.2007.913340).

Record type: Article

Abstract

The laser emission frequencies of existing designs are controlled by uniform thickness transformations. Experimental results from a total of ten wafers are presented demonstrating a predictable shift in the emission wavelength concurrent with an anticipated alteration in electrical transport. Wafers based on a design around 2.9 THz produced a frequency shift of 0.35 THz. Furthermore, a 2.5% thickness reduction in our 2-THz design saw a 0.1-THz frequency shift and changes in electrical transport predicted by simulations.

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e-pub ahead of print date: 22 January 2008
Published date: 15 February 2008

Identifiers

Local EPrints ID: 57263
URI: http://eprints.soton.ac.uk/id/eprint/57263
ISSN: 1041-1135
PURE UUID: 2aebaf7b-95df-42d1-8d79-d71e60082c66
ORCID for V. Apostolopoulos: ORCID iD orcid.org/0000-0003-3733-2191

Catalogue record

Date deposited: 07 Aug 2008
Last modified: 20 Jul 2019 00:51

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Contributors

Author: J.R. Freeman
Author: C. Worrall
Author: J. Alton
Author: H. Beere
Author: D.A. Ritchie

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