Surface-Radiative Modes and Longitudinal Excitons in the Spectra of Exciton–Polariton Luminescence
- 作者: Akhmadaliev B.Z.1, Yuldashev N.K.1, Yulchiev I.I.1
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隶属关系:
- Farg’ona Polytechnic Institute
- 期: 卷 125, 编号 3 (2018)
- 页面: 343-352
- 栏目: Spectroscopy of Condensed States
- URL: https://ogarev-online.ru/0030-400X/article/view/165787
- DOI: https://doi.org/10.1134/S0030400X18090023
- ID: 165787
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详细
Low-temperature (T = 2 K) spectra of exciton–polariton luminescence in the vicinity of the exciton resonance frequency An = 1 of CdS crystals are studied with allowance for the damping ℏΓ of mechanical excitons. The results of numerical calculations of the partial and interference contributions of bulk and surface-radiative spectral modes in the geometry of the radiation of additional waves into a vacuum with s and p polarizations are analyzed. It is shown that the contributions of purely longitudinal excitons and their interference with polaritons of the upper dispersion branch in luminescence in the vicinity of longitudinal frequency ωL are small (∼10−30%). Nevertheless, these contributions should be taken into account to achieve a quantitative agreement with the experiment; they determine the formation of an additional AL. line under oblique radiation.
作者简介
B. Akhmadaliev
Farg’ona Polytechnic Institute
编辑信件的主要联系方式.
Email: uzferfizika@mail.ru
乌兹别克斯坦, Farg’ona, 150107
N. Yuldashev
Farg’ona Polytechnic Institute
Email: uzferfizika@mail.ru
乌兹别克斯坦, Farg’ona, 150107
I. Yulchiev
Farg’ona Polytechnic Institute
Email: uzferfizika@mail.ru
乌兹别克斯坦, Farg’ona, 150107
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