Molecular-beam epitaxy of heterostructures of wide-gap II–VI compounds for low-threshold lasers with optical and electron pumping

Journal Article · Sun Mar 15 04:00:00 EDT 2015 · Semiconductors

DOI:https://doi.org/10.1134/S1063782615030215· OSTI ID:22470050

Gronin, S. V.; Sedova, I. V.; Rakhlin, M. V.; Baidakova, M. V.; Kop’ev, P. S. ^[1]; Vainilovich, A. G.; Lutsenko, E. V.; Yablonskii, G. P. ^[2]; Gamov, N. A.; Zhdanova, E. V.; Zverev, M. M. ^[3]; Ruvimov, S. S.; Ivanov, S. V. ^[1]

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1. Russian Academy of Sciences, Ioffe Institute (Russian Federation)
2. National Academy of Sciences of Belarus, Stepanov Institute of Physics (Belarus)
3. Moscow State Technical University of Radio Engineering, Electronics, and Automation (Russian Federation)

The paper presents basic approaches in designing and growing by molecular beam epitaxy of (Zn,Mg)(S,Se)-based laser heterostructures with multiple CdSe quantum dot (QD) sheets or ZnCdSe quantum wells (QW). The method of calculation of compensating short-period ZnSSe/ZnSe superlattices (SLs) in both active and waveguide regions of laser heterostructures possessing the different waveguide thickness and different number of active regions is presented. The method allowing reduction of the density of nonequilibrium point defects in the active region of the II–VI laser structures has been proposed. It utilizes the migration enhanced epitaxy mode in growing the ZnSe QW confining the CdSe QD sheet. The threshold power density as low as P{sub thr} ∼ 0.8 kW/cm{sup 2} at T = 300 K has been demonstrated for laser heterostructure with single CdSe QD sheet and asymmetric graded-index waveguide with strain-compensating SLs.

• OSTI ID: 22470050
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 3 Vol. 49; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
CADMIUM SELENIDES
ELECTRONS
HETEROJUNCTIONS
MAGNESIUM SULFIDES
MOLECULAR BEAM EPITAXY
POINT DEFECTS
POWER DENSITY
QUANTUM DOTS
QUANTUM WELLS
STRAINS
SUPERLATTICES
ZINC SELENIDES