TITLE

Stimulated emission from a Cd1-xMnxTe-CdTe multilayer structure

AUTHOR(S)
Bicknell, R. N.; Giles-Taylor, N. C.; Schetzina, J. F.; Anderson, N. G.; Laidig, W. D.
PUB. DATE
February 1985
SOURCE
Applied Physics Letters;2/1/1985, Vol. 46 Issue 3, p238
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
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] ∼ 150 Å) alternating with 24 Cd[sub 1-x]Mn[sub x] Te (x ∼ 0.45) barriers (L[sub B] ∼ 50 Å). The SL is sandwiched between thicker Cd[sub 1-x]Mn[sub x] Te cladding layers. The substrate consists of a 2-µmthick 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 ∼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 × 10[sup 4] W/cm². 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.
ACCESSION #
9817103

 

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