TITLE

GaAs/AlAs coupled multilayer cavity structures for terahertz emission devices

AUTHOR(S)
Kitada, Takahiro; Tanaka, Fumiya; Takahashi, Tomoya; Morita, Ken; Isu, Toshiro
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/14/2009, Vol. 95 Issue 11, p111106
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
GaAs/AlAs coupled multilayer cavity structures are proposed as terahertz emission devices. Two cavity modes with an optical frequency difference in the terahertz region can be realized when two cavity layers are coupled by an intermediate distributed Bragg reflector multilayer. Interference between the enhanced light fields of the cavity modes has been demonstrated by the simultaneous injection of two cavity-mode lights using an ultrashort pulse laser. Such coupled multilayer cavity structures are promising for use as compact and room temperature operable terahertz emission devices based on difference frequency generation by the cavity-mode lights.
ACCESSION #
44292312

 

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