Photopumped phonon-assisted laser operation (77 K) of In/sub 0. 5/(Al/sub /ital x//Ga/sub 1/minus//ital x//)/sub 0. 5/P quantum well heterostructures

Journal Article · Mon Jun 12 04:00:00 EDT 1989 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.101067· OSTI ID:6252693

Nam, D W; Hsieh, K C; Kuo, C P; Fletcher, R M; Osentowski, T D; Craford, M G

The photopumped phonon-assisted laser operation (612 nm, 77 K) of a high-gapIn/sub 1/minus//ital y//(Al/sub /ital x//Ga/sub 1/minus//ital x//)/sub /ital y//P quantum wellheterostructure (QWH) lattice matched to GaAs (/ital y/approx.0.5) is identified usinga single rectangular sample that is shifted in its heat sinking from (a) low/ital Q/ when clamped onto Au (bare edges) to (b) high /ital Q/ when furthercompressed into Au with all four edges reflecting. For the low-/ital Q/ QWH samplephotopumped in a spot (partially photopumped), phonon-assisted laser operation(abrupt threshold, narrow spectrum) is observed on closely spaced end-to-endlaser modes ..delta../ital E/=/h bar/..omega../sub LO/approx.45--47 meV below the lowestconfined-particle transitions. For the /ital same/ sample shifted tohigh /ital Q/, edge-to-edge laser operation across the sample on confined-particletransitions is ''turned on'' also, thus providing an unambiguous experimentalreference (/h bar/..omega../sub LO/approx.45--47 meV) for the phonon sideband.

• Research Organization: Electrical Engineering Research Laboratory, Center for Compound Semiconductor Microelectronics, and Materials Research Laboratory, University of Illinois at UrbanaChampaign, Urbana, Illinois 61801(US); Hewlett Packard Optoelectronics Division, San Jose, California 95131
• OSTI ID: 6252693
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 54:24; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM COMPOUNDS
ALUMINIUM PHOSPHIDES
DATA
EXPERIMENTAL DATA
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDES
HETEROJUNCTIONS
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
INFORMATION
JUNCTIONS
LASERS
NUMERICAL DATA
OPERATION
OPTICAL PUMPING
PHONONS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
PUMPING
QUASI PARTICLES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR JUNCTIONS
SEMICONDUCTOR LASERS