Coulomb-modulated gain spectra in current-injection T-shaped quantum-wire lasers

Makoto Okano; Masahiro Yoshita; Hidefumi Akiyama; Ping Huai; Tetsuo Ogawa; Loren N. Pfeiffer; Ken W. West

doi:10.1002/pssc.201000654

Coulomb-modulated gain spectra in current-injection T-shaped quantum-wire lasers

Makoto Okano, Masahiro Yoshita, Hidefumi Akiyama, Ping Huai, Tetsuo Ogawa, Loren N. Pfeiffer, Ken W. West

Electrical and Computer Engineering

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

4 Scopus citations

Abstract

We measured gain spectra of highly uniform current-injection T-shaped quantum wire lasers and investigated the physics of gain-spectral-shape modulation due to strong Coulomb interactions by comparing current-injection and optical-pumping measurements and additional calculations including screened Coulomb interaction. We found remarkable features for current injection: redshifts and long high- and low-energy tails of the gain peak. These characteristic current-injection features were ascribed to band-gap renormalization, state-filling, and carrier-carrier scattering inherent to charge-imbalanced electron-hole systems (

Original language	English (US)
Pages (from-to)	20-23
Number of pages	4
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	8
Issue number	1
DOIs	https://doi.org/10.1002/pssc.201000654
State	Published - Jan 2011

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

Keywords

Charge imbalance
Optical gain
Quantum wire
Semiconductor laser

Access to Document

10.1002/pssc.201000654

Cite this

@article{6191739e871c48599e960574152237a3,

title = "Coulomb-modulated gain spectra in current-injection T-shaped quantum-wire lasers",

abstract = "We measured gain spectra of highly uniform current-injection T-shaped quantum wire lasers and investigated the physics of gain-spectral-shape modulation due to strong Coulomb interactions by comparing current-injection and optical-pumping measurements and additional calculations including screened Coulomb interaction. We found remarkable features for current injection: redshifts and long high- and low-energy tails of the gain peak. These characteristic current-injection features were ascribed to band-gap renormalization, state-filling, and carrier-carrier scattering inherent to charge-imbalanced electron-hole systems (",

keywords = "Charge imbalance, Optical gain, Quantum wire, Semiconductor laser",

author = "Makoto Okano and Masahiro Yoshita and Hidefumi Akiyama and Ping Huai and Tetsuo Ogawa and Pfeiffer, \{Loren N.\} and West, \{Ken W.\}",

year = "2011",

month = jan,

doi = "10.1002/pssc.201000654",

language = "English (US)",

volume = "8",

pages = "20--23",

journal = "Physica Status Solidi (C) Current Topics in Solid State Physics",

issn = "1862-6351",

publisher = "Wiley-VCH Verlag",

number = "1",

}

TY - JOUR

T1 - Coulomb-modulated gain spectra in current-injection T-shaped quantum-wire lasers

AU - Okano, Makoto

AU - Yoshita, Masahiro

AU - Akiyama, Hidefumi

AU - Huai, Ping

AU - Ogawa, Tetsuo

AU - Pfeiffer, Loren N.

AU - West, Ken W.

PY - 2011/1

Y1 - 2011/1

N2 - We measured gain spectra of highly uniform current-injection T-shaped quantum wire lasers and investigated the physics of gain-spectral-shape modulation due to strong Coulomb interactions by comparing current-injection and optical-pumping measurements and additional calculations including screened Coulomb interaction. We found remarkable features for current injection: redshifts and long high- and low-energy tails of the gain peak. These characteristic current-injection features were ascribed to band-gap renormalization, state-filling, and carrier-carrier scattering inherent to charge-imbalanced electron-hole systems (

AB - We measured gain spectra of highly uniform current-injection T-shaped quantum wire lasers and investigated the physics of gain-spectral-shape modulation due to strong Coulomb interactions by comparing current-injection and optical-pumping measurements and additional calculations including screened Coulomb interaction. We found remarkable features for current injection: redshifts and long high- and low-energy tails of the gain peak. These characteristic current-injection features were ascribed to band-gap renormalization, state-filling, and carrier-carrier scattering inherent to charge-imbalanced electron-hole systems (

KW - Charge imbalance

KW - Optical gain

KW - Quantum wire

KW - Semiconductor laser

UR - https://www.scopus.com/pages/publications/78751535962

UR - https://www.scopus.com/inward/citedby.url?scp=78751535962&partnerID=8YFLogxK

U2 - 10.1002/pssc.201000654

DO - 10.1002/pssc.201000654

M3 - Article

AN - SCOPUS:78751535962

SN - 1862-6351

VL - 8

SP - 20

EP - 23

JO - Physica Status Solidi (C) Current Topics in Solid State Physics

JF - Physica Status Solidi (C) Current Topics in Solid State Physics

IS - 1

ER -

Coulomb-modulated gain spectra in current-injection T-shaped quantum-wire lasers

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

Other files and links

Fingerprint

Cite this