Coupled-cavity terahertz quantum cascade lasers for single mode operation
Li, H, Manceau, JM, Andronico, A et al. (6 more authors)
(2014)
Coupled-cavity terahertz quantum cascade lasers for single mode operation.
Applied Physics Letters, 104 (24).
241102.
ISSN 0003-6951
Abstract
We demonstrate the operation of coupled-cavity terahertz frequency quantum-cascade lasers composed of two sub-cavities separated by an air gap realized by optical lithography and dry etching. This geometry allows stable, single mode operation with typical side mode suppression ratios in the 30-40 dB range. We employ a transfer matrix method to model the mode selection mechanism. The obtained results are in good agreement with the measurements and allow prediction of the operating frequency.
Metadata
Item Type:
Article
Authors/Creators:
Li, H
Manceau, JM
Andronico, A
Jagtap, V
Sirtori, C
Li, LH
Linfield, EH
Davies, AG
Barbieri, S
Copyright, Publisher and Additional Information:
(c) 2014, AIP Publishing LLC. Reproduced in accordance with the publisher's self-archiving policy.
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