Ultrafast excitonic room temperature nonlinearity in neutron irradiated quantum wells

S. Ten; J. G. Williams; P. T. Guerreiro; G. Khitrova; N. Peyghambarian

doi:10.1063/1.118346

Ultrafast excitonic room temperature nonlinearity in neutron irradiated quantum wells

S. Ten, J. G. Williams, P. T. Guerreiro, G. Khitrova, N. Peyghambarian

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

4 Scopus citations

Abstract

Sharp room temperature exciton features and complete recovery of the excitonic absorption with 21 ps time constant are demonstrated in neutron irradiated (Ga,Al)As/GaAs multiple quantum wells. Carrier lifetime reduction is consistent with the EL2 midgap defect which is efficiently generated by fast neutrons. Influence of gamma rays accompanying neutron irradiation is discussed. Neutron irradiation provides a straightforward way to control carrier lifetime in semiconductor heterostructures with minor deterioration of their excitonic properties.

Original language	English (US)
Pages (from-to)	158-160
Number of pages	3
Journal	Applied Physics Letters
Volume	70
Issue number	2
DOIs	https://doi.org/10.1063/1.118346
State	Published - Jan 13 1997

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.118346

Cite this

@article{e9e7b8381c0c4dc5b0eccf8eeea8f9ae,

title = "Ultrafast excitonic room temperature nonlinearity in neutron irradiated quantum wells",

abstract = "Sharp room temperature exciton features and complete recovery of the excitonic absorption with 21 ps time constant are demonstrated in neutron irradiated (Ga,Al)As/GaAs multiple quantum wells. Carrier lifetime reduction is consistent with the EL2 midgap defect which is efficiently generated by fast neutrons. Influence of gamma rays accompanying neutron irradiation is discussed. Neutron irradiation provides a straightforward way to control carrier lifetime in semiconductor heterostructures with minor deterioration of their excitonic properties.",

author = "S. Ten and Williams, {J. G.} and Guerreiro, {P. T.} and G. Khitrova and N. Peyghambarian",

year = "1997",

month = jan,

day = "13",

doi = "10.1063/1.118346",

language = "English (US)",

volume = "70",

pages = "158--160",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "2",

}

TY - JOUR

T1 - Ultrafast excitonic room temperature nonlinearity in neutron irradiated quantum wells

AU - Ten, S.

AU - Williams, J. G.

AU - Guerreiro, P. T.

AU - Khitrova, G.

AU - Peyghambarian, N.

PY - 1997/1/13

Y1 - 1997/1/13

N2 - Sharp room temperature exciton features and complete recovery of the excitonic absorption with 21 ps time constant are demonstrated in neutron irradiated (Ga,Al)As/GaAs multiple quantum wells. Carrier lifetime reduction is consistent with the EL2 midgap defect which is efficiently generated by fast neutrons. Influence of gamma rays accompanying neutron irradiation is discussed. Neutron irradiation provides a straightforward way to control carrier lifetime in semiconductor heterostructures with minor deterioration of their excitonic properties.

AB - Sharp room temperature exciton features and complete recovery of the excitonic absorption with 21 ps time constant are demonstrated in neutron irradiated (Ga,Al)As/GaAs multiple quantum wells. Carrier lifetime reduction is consistent with the EL2 midgap defect which is efficiently generated by fast neutrons. Influence of gamma rays accompanying neutron irradiation is discussed. Neutron irradiation provides a straightforward way to control carrier lifetime in semiconductor heterostructures with minor deterioration of their excitonic properties.

UR - http://www.scopus.com/inward/record.url?scp=0030783449&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030783449&partnerID=8YFLogxK

U2 - 10.1063/1.118346

DO - 10.1063/1.118346

M3 - Article

AN - SCOPUS:0030783449

SN - 0003-6951

VL - 70

SP - 158

EP - 160

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

ER -

Ultrafast excitonic room temperature nonlinearity in neutron irradiated quantum wells

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this