Optical gain in (Zn,Cd)Se-Zn(S,Se) quantum wells as a function of temperature

F. P. Logue; P. Rees; C. Jordan; J. F. Donegan; J. Hegarty; F. Hiei; S. Taniguchi; T. Hino; K. Nakano; A. Ishibashi

doi:10.1016/s0022-0248(98)80131-0

Optical gain in (Zn,Cd)Se-Zn(S,Se) quantum wells as a function of temperature

F. P. Logue, P. Rees, C. Jordan, J. F. Donegan, J. Hegarty, F. Hiei, S. Taniguchi, T. Hino, K. Nakano, A. Ishibashi

Research output: Contribution to journal › Article

Abstract

We have investigated the mechanism of stimulated emission in ZnCdSe-ZnSSe quantum wells through measurements of the optical gain spectrum between 77 and 270 K. We also calculated the optical gain using a model which included many-body effects and found excellent agreement with our measurements. Our results are inconsistent with an excitonic gain mechanism and we conclude that the stimulated emission arises from an electron-hole plasma in our samples. However, we find that the electron-hole Coulomb interaction is still significant at room temperature in II-VI heterostructures.

Original language	English (US)
Pages (from-to)	623-626
Number of pages	4
Journal	Journal of Crystal Growth
Volume	184-185
DOIs	https://doi.org/10.1016/s0022-0248(98)80131-0
State	Published - 1998

Keywords

Gain spectra
II-VI quantum wells
Many-body theory

ASJC Scopus subject areas

Condensed Matter Physics

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10.1016/s0022-0248(98)80131-0

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title = "Optical gain in (Zn,Cd)Se-Zn(S,Se) quantum wells as a function of temperature",

abstract = "We have investigated the mechanism of stimulated emission in ZnCdSe-ZnSSe quantum wells through measurements of the optical gain spectrum between 77 and 270 K. We also calculated the optical gain using a model which included many-body effects and found excellent agreement with our measurements. Our results are inconsistent with an excitonic gain mechanism and we conclude that the stimulated emission arises from an electron-hole plasma in our samples. However, we find that the electron-hole Coulomb interaction is still significant at room temperature in II-VI heterostructures.",

keywords = "Gain spectra, II-VI quantum wells, Many-body theory",

author = "Logue, {F. P.} and P. Rees and C. Jordan and Donegan, {J. F.} and J. Hegarty and F. Hiei and S. Taniguchi and T. Hino and K. Nakano and A. Ishibashi",

year = "1998",

doi = "10.1016/s0022-0248(98)80131-0",

language = "English (US)",

volume = "184-185",

pages = "623--626",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier",

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TY - JOUR

T1 - Optical gain in (Zn,Cd)Se-Zn(S,Se) quantum wells as a function of temperature

AU - Logue, F. P.

AU - Rees, P.

AU - Jordan, C.

AU - Donegan, J. F.

AU - Hegarty, J.

AU - Hiei, F.

AU - Taniguchi, S.

AU - Hino, T.

AU - Nakano, K.

AU - Ishibashi, A.

PY - 1998

Y1 - 1998

N2 - We have investigated the mechanism of stimulated emission in ZnCdSe-ZnSSe quantum wells through measurements of the optical gain spectrum between 77 and 270 K. We also calculated the optical gain using a model which included many-body effects and found excellent agreement with our measurements. Our results are inconsistent with an excitonic gain mechanism and we conclude that the stimulated emission arises from an electron-hole plasma in our samples. However, we find that the electron-hole Coulomb interaction is still significant at room temperature in II-VI heterostructures.

AB - We have investigated the mechanism of stimulated emission in ZnCdSe-ZnSSe quantum wells through measurements of the optical gain spectrum between 77 and 270 K. We also calculated the optical gain using a model which included many-body effects and found excellent agreement with our measurements. Our results are inconsistent with an excitonic gain mechanism and we conclude that the stimulated emission arises from an electron-hole plasma in our samples. However, we find that the electron-hole Coulomb interaction is still significant at room temperature in II-VI heterostructures.

KW - Gain spectra

KW - II-VI quantum wells

KW - Many-body theory

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U2 - 10.1016/s0022-0248(98)80131-0

DO - 10.1016/s0022-0248(98)80131-0

M3 - Article

AN - SCOPUS:11544289092

VL - 184-185

SP - 623

EP - 626

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

SN - 0022-0248

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