Separation of screened Coulomb interaction and phase-space filling in exciton bleaching of multiple quantum wells

Koo Chul Je, Moongoo Choi, Sang Youp Yim, Jeung Sun Ahn, Seung Han Park

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Excitonic nonlinearity in multiple quantum wells due to many-body interactions consisting of phase-space filling and screened Coulomb interaction is investigated. In particular, we show that the effects of the screened Coulomb interaction and the phase-space filling on the exciton bleaching can be separated for highly excited carrier densities by femtosecond pump pulses. We also find that the phase-space filling effects on the excitonic bleaching are about three times larger than the effects of screened Coulomb interaction and gradually decreases with increasing carrier density within the Mott density.

Original languageEnglish
Article number155312
Pages (from-to)1553121-1553125
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number15
DOIs
Publication statusPublished - 2002 Oct 15

Fingerprint

bleaching
Bleaching
Coulomb interactions
Excitons
Semiconductor quantum wells
excitons
quantum wells
Carrier concentration
interactions
Pumps
nonlinearity
pumps
LDS 751
pulses

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

@article{31bab0fa604245b49f2fb07b0ad7bd0b,
title = "Separation of screened Coulomb interaction and phase-space filling in exciton bleaching of multiple quantum wells",
abstract = "Excitonic nonlinearity in multiple quantum wells due to many-body interactions consisting of phase-space filling and screened Coulomb interaction is investigated. In particular, we show that the effects of the screened Coulomb interaction and the phase-space filling on the exciton bleaching can be separated for highly excited carrier densities by femtosecond pump pulses. We also find that the phase-space filling effects on the excitonic bleaching are about three times larger than the effects of screened Coulomb interaction and gradually decreases with increasing carrier density within the Mott density.",
author = "Je, {Koo Chul} and Moongoo Choi and Yim, {Sang Youp} and Ahn, {Jeung Sun} and Park, {Seung Han}",
year = "2002",
month = "10",
day = "15",
doi = "10.1103/PhysRevB.66.155312",
language = "English",
volume = "66",
pages = "1553121--1553125",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "15",

}

Separation of screened Coulomb interaction and phase-space filling in exciton bleaching of multiple quantum wells. / Je, Koo Chul; Choi, Moongoo; Yim, Sang Youp; Ahn, Jeung Sun; Park, Seung Han.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 66, No. 15, 155312, 15.10.2002, p. 1553121-1553125.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Separation of screened Coulomb interaction and phase-space filling in exciton bleaching of multiple quantum wells

AU - Je, Koo Chul

AU - Choi, Moongoo

AU - Yim, Sang Youp

AU - Ahn, Jeung Sun

AU - Park, Seung Han

PY - 2002/10/15

Y1 - 2002/10/15

N2 - Excitonic nonlinearity in multiple quantum wells due to many-body interactions consisting of phase-space filling and screened Coulomb interaction is investigated. In particular, we show that the effects of the screened Coulomb interaction and the phase-space filling on the exciton bleaching can be separated for highly excited carrier densities by femtosecond pump pulses. We also find that the phase-space filling effects on the excitonic bleaching are about three times larger than the effects of screened Coulomb interaction and gradually decreases with increasing carrier density within the Mott density.

AB - Excitonic nonlinearity in multiple quantum wells due to many-body interactions consisting of phase-space filling and screened Coulomb interaction is investigated. In particular, we show that the effects of the screened Coulomb interaction and the phase-space filling on the exciton bleaching can be separated for highly excited carrier densities by femtosecond pump pulses. We also find that the phase-space filling effects on the excitonic bleaching are about three times larger than the effects of screened Coulomb interaction and gradually decreases with increasing carrier density within the Mott density.

UR - http://www.scopus.com/inward/record.url?scp=5444225026&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=5444225026&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.66.155312

DO - 10.1103/PhysRevB.66.155312

M3 - Article

VL - 66

SP - 1553121

EP - 1553125

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 15

M1 - 155312

ER -