Optical Kerr response to multi pump pulses on GaAs weakly confined exciton

Atsushi Kanno; Redouane Katouf; Osamu Kojima; Junko Ishi-Hayase; Masahiro Tsuchiya; Toshiro Isu

doi:10.1002/pssc.200881515

Optical Kerr response to multi pump pulses on GaAs weakly confined exciton

Atsushi Kanno, Redouane Katouf, Osamu Kojima, Junko Ishi-Hayase, Masahiro Tsuchiya, Toshiro Isu

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

We investigate optical Kerr response under two-pump pulse irradiation induced by GaAs weakly confined exciton. Ultrafast response times of the order of picoseconds are observed despite long exciton lifetime of the order of nanoseconds. The difference may be attributed to the relaxation mechanisms between population relaxation and nonlinear relaxation of excitons. In addition, the observed temporal shapes of the optical Kerr response are conserved under irradiation by a preceding pulse that forms the exciton population. The pulse separation of the optical Kerr response between two pump pulses is achieved to be 800 fs, which corresponds to a signal train of 1.25 Tbits per second.

Original language	English
Pages (from-to)	1509-1512
Number of pages	4
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	6
Issue number	6
DOIs	https://doi.org/10.1002/pssc.200881515
Publication status	Published - 2009 Sept 30
Externally published	Yes
Event	35th International Symposium on Compound Semiconductors, ISCS 2008 - Rust, Germany Duration: 2008 Sept 21 → 2008 Sept 24

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1002/pssc.200881515

Cite this

@article{c9132b9584a54b68b19f7b5286e37e72,

title = "Optical Kerr response to multi pump pulses on GaAs weakly confined exciton",

abstract = "We investigate optical Kerr response under two-pump pulse irradiation induced by GaAs weakly confined exciton. Ultrafast response times of the order of picoseconds are observed despite long exciton lifetime of the order of nanoseconds. The difference may be attributed to the relaxation mechanisms between population relaxation and nonlinear relaxation of excitons. In addition, the observed temporal shapes of the optical Kerr response are conserved under irradiation by a preceding pulse that forms the exciton population. The pulse separation of the optical Kerr response between two pump pulses is achieved to be 800 fs, which corresponds to a signal train of 1.25 Tbits per second.",

author = "Atsushi Kanno and Redouane Katouf and Osamu Kojima and Junko Ishi-Hayase and Masahiro Tsuchiya and Toshiro Isu",

year = "2009",

month = sep,

day = "30",

doi = "10.1002/pssc.200881515",

language = "English",

volume = "6",

pages = "1509--1512",

journal = "Physica Status Solidi C: Conferences",

issn = "1862-6351",

publisher = "Wiley-VCH Verlag",

number = "6",

note = "35th International Symposium on Compound Semiconductors, ISCS 2008 ; Conference date: 21-09-2008 Through 24-09-2008",

}

TY - JOUR

T1 - Optical Kerr response to multi pump pulses on GaAs weakly confined exciton

AU - Kanno, Atsushi

AU - Katouf, Redouane

AU - Kojima, Osamu

AU - Ishi-Hayase, Junko

AU - Tsuchiya, Masahiro

AU - Isu, Toshiro

PY - 2009/9/30

Y1 - 2009/9/30

N2 - We investigate optical Kerr response under two-pump pulse irradiation induced by GaAs weakly confined exciton. Ultrafast response times of the order of picoseconds are observed despite long exciton lifetime of the order of nanoseconds. The difference may be attributed to the relaxation mechanisms between population relaxation and nonlinear relaxation of excitons. In addition, the observed temporal shapes of the optical Kerr response are conserved under irradiation by a preceding pulse that forms the exciton population. The pulse separation of the optical Kerr response between two pump pulses is achieved to be 800 fs, which corresponds to a signal train of 1.25 Tbits per second.

AB - We investigate optical Kerr response under two-pump pulse irradiation induced by GaAs weakly confined exciton. Ultrafast response times of the order of picoseconds are observed despite long exciton lifetime of the order of nanoseconds. The difference may be attributed to the relaxation mechanisms between population relaxation and nonlinear relaxation of excitons. In addition, the observed temporal shapes of the optical Kerr response are conserved under irradiation by a preceding pulse that forms the exciton population. The pulse separation of the optical Kerr response between two pump pulses is achieved to be 800 fs, which corresponds to a signal train of 1.25 Tbits per second.

UR - http://www.scopus.com/inward/record.url?scp=70349431436&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70349431436&partnerID=8YFLogxK

U2 - 10.1002/pssc.200881515

DO - 10.1002/pssc.200881515

M3 - Conference article

AN - SCOPUS:70349431436

SN - 1862-6351

VL - 6

SP - 1509

EP - 1512

JO - Physica Status Solidi C: Conferences

JF - Physica Status Solidi C: Conferences

IS - 6

T2 - 35th International Symposium on Compound Semiconductors, ISCS 2008

Y2 - 21 September 2008 through 24 September 2008

ER -

Optical Kerr response to multi pump pulses on GaAs weakly confined exciton

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this