Open AccessМеждународная школа-семинар Экситоны в кристаллах и полупроводниковых наноструктурах", посвященная 120-летию со дня рождения Е. Ф. Гросса, Санкт-Петербург 10-12 октября 2017 года Экситонная спектроскопия полупроводников методом генерации оптических гармоник [1mm] (О б з о р)
Author(s) -
Д.Р. Яковлев,
В В Павлов,
А. В. Родина,
Роман Васильевич Писарев,
Johannes Mund,
W. Warkentin,
Maximiliano Bayer
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.08.46335.16gr
Subject(s) - exciton , zeeman effect , harmonics , spectroscopy , semiconductor , condensed matter physics , magnetic field , stark effect , heterojunction , biexciton , spin (aerodynamics) , electric field , multiple exciton generation , physics , materials science , optoelectronics , chemistry , voltage , band gap , quantum mechanics , thermodynamics
Nonlinear optical phenomena are widely used for the study of semiconductor materials. The paper presents an overview of experimental and theoretical studies of excitons by the method of optical second and third harmonics generation in various bulk semiconductors (GaAs, CdTe, ZnSe, ZnO, Cu_2O, (Cd,Mn)Te, EuTe, EuSe), and low-dimensional heterostructures ZnSe/BeTe. Particular attention is paid to the role of external electric and magnetic fields that modify the exciton states and induce new mechanisms of optical harmonics generation. Microscopic mechanisms of harmonics generation based on the Stark effect, the spin and orbital Zeeman effects, and on the magneto-Stark effect specific for excitons moving in an external magnetic field are considered. This approach makes it possible to study the properties of excitons and to obtain new information on their energy and spin structure that is not available when the excitons are investigated by linear optical spectroscopy. As a result of these studies, a large amount of information was obtained, which allows us to conclude on the establishing of a new field of research—exciton spectroscopy by the method of optical harmonics generation.