The relation between light absorption and luminescence in laser cooling of two-dimensional semiconductor systems

Nai-Hang Kwong, G. Rupper, B. Gu, Rudolf Binder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In efforts underway to achieve laser cooling of semiconductors, an electron-hole population is generated in the sample and maintained in a steady state. The analysis of light absorption by and luminescence from this population is basic to the understanding of feasibility and efficiency issues of the cooling process. It is commonly understood that, when this electron-hole plasma is in quasi-thermal equilibrium (equilibrium at a fixed density), the KMS (Kubo-Martin-Scliwinger) relation holds between its luminescence and absorption spectra: their ratio is proportional to the Bose distribution function characterized by the temperature and chemical potential of the plasma. The proportionality factor, which affects the total luminescence rate, may generally depend on the dimensionality and geometry of the system, In this Contribution, as a preliminary step to extend our theoretical analysis of semiconductor cooling to quantum well systems, we discuss the application of the KMS relation to their spectra. In particular, we derive and discuss the geometrical proportionality factor in the KMS relation forquantum wells and compare it to its counterpart for bulk semiconductors.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6461
DOIs
StatePublished - 2007
EventLaser Cooling of Solids - San Jose, CA, United States
Duration: Jan 24 2007Jan 25 2007

Other

OtherLaser Cooling of Solids
CountryUnited States
CitySan Jose, CA
Period1/24/071/25/07

Fingerprint

Laser cooling
laser cooling
electromagnetic absorption
Light absorption
Luminescence
luminescence
Semiconductor materials
Cooling
Plasmas
cooling
Electrons
Chemical potential
Semiconductor quantum wells
Distribution functions
Absorption spectra
distribution functions
quantum wells
absorption spectra
Geometry
geometry

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kwong, N-H., Rupper, G., Gu, B., & Binder, R. (2007). The relation between light absorption and luminescence in laser cooling of two-dimensional semiconductor systems. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6461). [64610I] https://doi.org/10.1117/12.708536

The relation between light absorption and luminescence in laser cooling of two-dimensional semiconductor systems. / Kwong, Nai-Hang; Rupper, G.; Gu, B.; Binder, Rudolf.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6461 2007. 64610I.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kwong, N-H, Rupper, G, Gu, B & Binder, R 2007, The relation between light absorption and luminescence in laser cooling of two-dimensional semiconductor systems. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6461, 64610I, Laser Cooling of Solids, San Jose, CA, United States, 1/24/07. https://doi.org/10.1117/12.708536
Kwong N-H, Rupper G, Gu B, Binder R. The relation between light absorption and luminescence in laser cooling of two-dimensional semiconductor systems. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6461. 2007. 64610I https://doi.org/10.1117/12.708536
Kwong, Nai-Hang ; Rupper, G. ; Gu, B. ; Binder, Rudolf. / The relation between light absorption and luminescence in laser cooling of two-dimensional semiconductor systems. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6461 2007.
@inproceedings{1acb40996fec43529775a9d40bf89497,
title = "The relation between light absorption and luminescence in laser cooling of two-dimensional semiconductor systems",
abstract = "In efforts underway to achieve laser cooling of semiconductors, an electron-hole population is generated in the sample and maintained in a steady state. The analysis of light absorption by and luminescence from this population is basic to the understanding of feasibility and efficiency issues of the cooling process. It is commonly understood that, when this electron-hole plasma is in quasi-thermal equilibrium (equilibrium at a fixed density), the KMS (Kubo-Martin-Scliwinger) relation holds between its luminescence and absorption spectra: their ratio is proportional to the Bose distribution function characterized by the temperature and chemical potential of the plasma. The proportionality factor, which affects the total luminescence rate, may generally depend on the dimensionality and geometry of the system, In this Contribution, as a preliminary step to extend our theoretical analysis of semiconductor cooling to quantum well systems, we discuss the application of the KMS relation to their spectra. In particular, we derive and discuss the geometrical proportionality factor in the KMS relation forquantum wells and compare it to its counterpart for bulk semiconductors.",
author = "Nai-Hang Kwong and G. Rupper and B. Gu and Rudolf Binder",
year = "2007",
doi = "10.1117/12.708536",
language = "English (US)",
isbn = "0819465747",
volume = "6461",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

}

TY - GEN

T1 - The relation between light absorption and luminescence in laser cooling of two-dimensional semiconductor systems

AU - Kwong, Nai-Hang

AU - Rupper, G.

AU - Gu, B.

AU - Binder, Rudolf

PY - 2007

Y1 - 2007

N2 - In efforts underway to achieve laser cooling of semiconductors, an electron-hole population is generated in the sample and maintained in a steady state. The analysis of light absorption by and luminescence from this population is basic to the understanding of feasibility and efficiency issues of the cooling process. It is commonly understood that, when this electron-hole plasma is in quasi-thermal equilibrium (equilibrium at a fixed density), the KMS (Kubo-Martin-Scliwinger) relation holds between its luminescence and absorption spectra: their ratio is proportional to the Bose distribution function characterized by the temperature and chemical potential of the plasma. The proportionality factor, which affects the total luminescence rate, may generally depend on the dimensionality and geometry of the system, In this Contribution, as a preliminary step to extend our theoretical analysis of semiconductor cooling to quantum well systems, we discuss the application of the KMS relation to their spectra. In particular, we derive and discuss the geometrical proportionality factor in the KMS relation forquantum wells and compare it to its counterpart for bulk semiconductors.

AB - In efforts underway to achieve laser cooling of semiconductors, an electron-hole population is generated in the sample and maintained in a steady state. The analysis of light absorption by and luminescence from this population is basic to the understanding of feasibility and efficiency issues of the cooling process. It is commonly understood that, when this electron-hole plasma is in quasi-thermal equilibrium (equilibrium at a fixed density), the KMS (Kubo-Martin-Scliwinger) relation holds between its luminescence and absorption spectra: their ratio is proportional to the Bose distribution function characterized by the temperature and chemical potential of the plasma. The proportionality factor, which affects the total luminescence rate, may generally depend on the dimensionality and geometry of the system, In this Contribution, as a preliminary step to extend our theoretical analysis of semiconductor cooling to quantum well systems, we discuss the application of the KMS relation to their spectra. In particular, we derive and discuss the geometrical proportionality factor in the KMS relation forquantum wells and compare it to its counterpart for bulk semiconductors.

UR - http://www.scopus.com/inward/record.url?scp=34248674925&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34248674925&partnerID=8YFLogxK

U2 - 10.1117/12.708536

DO - 10.1117/12.708536

M3 - Conference contribution

AN - SCOPUS:34248674925

SN - 0819465747

SN - 9780819465740

VL - 6461

BT - Proceedings of SPIE - The International Society for Optical Engineering

ER -