Optical amplification and its saturation in semiconductor quantum wells
نویسندگان
چکیده
منابع مشابه
Optical two-dimensional fourier transform spectroscopy of semiconductor quantum wells.
Coherent light-matter interactions of direct-gap semiconductor nanostructures provide a great test system for fundamental research into quantum electronics and many-body physics. The understanding gained from studying these interactions can facilitate the design of optoelectronic devices. Recently, we have used optical two-dimensional Fourier-transform spectroscopy to explore coherent light-mat...
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1.1 Two-Dimensional exciton fine structure The spin properties of excitons in nanostructures are determined by their fine structure. Before analysing the exciton spin dynamics, we give first a brief description of the exciton states in quantum wells. We will mainly focus in this review on GaAs or InGaAs quantum well which are model systems. For more details, the reader is referred to the review...
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Topological phases of matter have captured our imagination over the past few years, with tantalizing properties such as robust edge modes and exotic non-Abelian excitations, and potential applications ranging from semiconductor spintronics to topological quantum computation. Despite recent advancements in the field, our ability to control topological transitions remains limited, and usually req...
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Photon echoes occur when a set of inhomoge-neously broadened transitions are rephased after exci-tation by a series of optical pulses. They are the optical analog to spin echoes developed in nuclear magnetic resonance spectroscopy [1]. The primary uses of pho-ton echoes are in coherent transient signal processing and spectroscopy. Due to the rephasing, photon echo spectroscopy can determine the...
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The principal mechanisms of Auger recombination of nonequilibrium carriers in semiconductor heterostructures with quantum wells are investigated. It is shown for the first time that there exist three fundamentally different Auger recombination mechanisms of (i) thresholdless, (ii) quasi-threshold, and (iii) threshold types. The rate of the thresholdless Auger process depends on temperature only...
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ژورنال
عنوان ژورنال: Optical Engineering
سال: 1995
ISSN: 0091-3286
DOI: 10.1117/12.200612