Photothermal transitions of magnetoexcitons in GaAs/AlxGa1-xas quantum wells

J. Černe; J. Kono; M. Su; M. S. Sherwin

Photothermal transitions of magnetoexcitons in GaAs/Al_xGa_1-xas quantum wells

J. Černe
, J. Kono
, M. Su
, M. S. Sherwin

Physics

Rice University
National Institute of Standards and Technology
University of California at Santa Barbara

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

By monitoring changes in excitonic photoluminescence (PL) that are induced by terahertz (THz) radiation, we observe resonant THz absorption by magnetoexcitons in GaAs/Al_xGa_1-xAs quantum wells. Changes in the PL spectrum are explored as a function of temperature and magnetic field, providing insight into the mechanisms which allow THz absorption to modulate PL. The strongest PL-quenching occurs at the heavy hole 1s → 2p⁺ resonance where heavy hole excitons are photothermally converted into light hole excitons.

Original language	English
Article number	205301
Pages (from-to)	2053011-2053016
Number of pages	6
Journal	Physical Review B-Condensed Matter
Volume	66
Issue number	20
State	Published - Nov 15 2002

Cite this

@article{667dc334303b4abbbeb13d8e7809f2c4,

title = "Photothermal transitions of magnetoexcitons in GaAs/AlxGa1-xas quantum wells",

abstract = "By monitoring changes in excitonic photoluminescence (PL) that are induced by terahertz (THz) radiation, we observe resonant THz absorption by magnetoexcitons in GaAs/AlxGa1-xAs quantum wells. Changes in the PL spectrum are explored as a function of temperature and magnetic field, providing insight into the mechanisms which allow THz absorption to modulate PL. The strongest PL-quenching occurs at the heavy hole 1s → 2p+ resonance where heavy hole excitons are photothermally converted into light hole excitons.",

author = "J. {\v C}erne and J. Kono and M. Su and Sherwin, \{M. S.\}",

year = "2002",

month = nov,

day = "15",

language = "English",

volume = "66",

pages = "2053011--2053016",

journal = "Physical Review B-Condensed Matter",

issn = "0163-1829",

number = "20",

}

TY - JOUR

T1 - Photothermal transitions of magnetoexcitons in GaAs/AlxGa1-xas quantum wells

AU - Černe, J.

AU - Kono, J.

AU - Su, M.

AU - Sherwin, M. S.

PY - 2002/11/15

Y1 - 2002/11/15

N2 - By monitoring changes in excitonic photoluminescence (PL) that are induced by terahertz (THz) radiation, we observe resonant THz absorption by magnetoexcitons in GaAs/AlxGa1-xAs quantum wells. Changes in the PL spectrum are explored as a function of temperature and magnetic field, providing insight into the mechanisms which allow THz absorption to modulate PL. The strongest PL-quenching occurs at the heavy hole 1s → 2p+ resonance where heavy hole excitons are photothermally converted into light hole excitons.

AB - By monitoring changes in excitonic photoluminescence (PL) that are induced by terahertz (THz) radiation, we observe resonant THz absorption by magnetoexcitons in GaAs/AlxGa1-xAs quantum wells. Changes in the PL spectrum are explored as a function of temperature and magnetic field, providing insight into the mechanisms which allow THz absorption to modulate PL. The strongest PL-quenching occurs at the heavy hole 1s → 2p+ resonance where heavy hole excitons are photothermally converted into light hole excitons.

UR - https://www.scopus.com/pages/publications/0037113402

M3 - Article

AN - SCOPUS:0037113402

SN - 0163-1829

VL - 66

SP - 2053011

EP - 2053016

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

IS - 20

M1 - 205301

ER -

Photothermal transitions of magnetoexcitons in GaAs/Al_xGa_1-xas quantum wells

Abstract

Other files and links

Fingerprint

Cite this