Multidimensional coherent optical spectroscopy of semiconductor nanostructures: a review
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In order to investigate the dramatic enhancement of the oxidation rate of semiconductor materials, promoted by an alkali-metal overlayer, we exposed a GaAs(110) surface covered by a monolayer of Cs to oxygen, observing the photoemission spectra of As 2p, G ...
During the past year, the broad tunability (1-10 mum) and megawatt peak intensity made available by the Vanderbilt Free-Electron Laser opened new and productive avenues to semiconductor research. This paper overviews three of these experimental areas: nonl ...
It is demonstrated that the concept of surfactant applies to the epitaxial growth of highly strained III-V semiconductors. The pseudomorphic growth regime of InAs on GaAs(001) is extended from 1.5 to 6 monolayers by the use of Te as surfactant. This delaye ...
The broad tunability (1-10 mum) and megawatt regime peak intensity available from the Vanderbilt Free-Electron Laser is opening new avenues in semiconductor research. Initial experiments in nonlinear optical absorption and heterojunction band-edge disconti ...
Photoelectron spectromicroscopy, the combination of conventional photoelectron spectroscopy and high lateral resolution, is a novel technique that exploits the high brightness of the most recent synchrotron sources. We briefly review its main implementatio ...
Theor. models for the action spectrum and the current-voltage characteristics of microporous (colloidal) semiconductor films in photoelectrochem. cells were derived. The derivation is based on the assumptions that the charge carrier transport in the semico ...
An electrically pumped VCSEL (10) and a method of its fabrication are presented. The VCSEL (10) comprises an active cavity material (14) sandwiched between top and bottom DBR stacks (12a, 12b), the top DBR (12b) having at least one n-semiconductor layer. T ...
The present paper describes a new method for manufg. a nanostructured porous layer of a semiconductor material on a conducting plastic substrate for use in an electrochem. or photoelectrochem. cell. The method involves the deposition of a layer of semicond ...
The observation of a wedge-shaped semiconductor specimen by transmission electron microscopy (WTEM) is an interesting alternative to conventional TEM. Information on chemical composition, layer thickness down to atomic resolution, spatial extension of the ...
The main fields of applications are today especially broadcast amplifiers and fast power-supplies for plasma physics or neutral Beam Injection. The fisrst interests on the proposed technique is the series connected step inverter stages, which represents a ...