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Stimulated emission from a Cd/sub 1-x/Mn/sub x/Te-CdTe multilayer structure

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.95695· OSTI ID:6015050
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In this letter we report the first observation of stimulated emission from an optically pumped Cd/sub 1-x/Mn/sub x/Te-CdTe multilayer structure. This new laser structure was grown by molecular beam epitaxy and consists of an active superlattice (SL) region containing 25 CdTe quantum wells (L/sub z/approx.150 A) alternating with 24 Cd/sub 1-x/Mn/sub x/Te (xapprox.0.45) barriers (L/sub B/approx.50 A). The SL is sandwiched between thicker Cd/sub 1-x/Mn/sub x/Te cladding layers. The substrate consists of a 2-..mu..m-thick buffer layer of CdTe on GaAs. The Cd/sub 1-x/Mn/sub x/Te-CdTe SL lasers operate at 763--766 nm when optically pumped at approx.25 K with a cavity-dumped argon ion laser which emits 4-ns light pulses (514.5 nm) at a repetition rate of 3.8 MHz. The onset of laser action occurs at a peak pump power density of about 1.35 x 10/sup 4/ W/cm/sup 2/. The mode spacing of the emitted laser radiation is in reasonable agreement with the spacing expected from measured cavity dimensions of the Cd/sub 1-x/Mn/sub x/Te-CdTe multilayer.

Research Organization:
Department of Physics, North Carolina State University, Raleigh, North Carolina 27695-8202
OSTI ID:
6015050
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 46:3; ISSN APPLA
Country of Publication:
United States
Language:
English

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Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CADMIUM COMPOUNDS
CADMIUM TELLURIDES
CHALCOGENIDES
DATA
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY-LEVEL TRANSITIONS
EPITAXY
EXPERIMENTAL DATA
FABRICATION
GAS LASERS
INFORMATION
INFRARED RADIATION
LASERS
LAYERS
MANGANESE COMPOUNDS
MANGANESE TELLURIDES
MOLECULAR BEAM EPITAXY
NEAR INFRARED RADIATION
NUMERICAL DATA
OPERATION
OPTICAL PUMPING
POTENTIALS
POWER
PUMPING
RADIATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
STIMULATED EMISSION
TELLURIDES
TELLURIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VERY LOW TEMPERATURE