Abstract
MBE growth of GaSb / InGaAsSb / GaSb heterostructures of high crystal quality is performed under continual RHEED control. Transmission spectra of the films forming multiple quantum wells in λ ≈ 2–3 μm region confirm possibility to control optical properties of the structures through quantum confinement and through the content of semiconductor elements. New design of saturable absorption semiconductor mirror (SESAM) for Cr 2+: ZnSe laser is proposed and manufactured on the base of the single quantum well GaSb / InGaAsSb / GaSb placed between dielectric antireflection and broadband high reflection coatings.
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