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Purcell effect in sub-wavelength semiconductor lasers.

Qing Gu1, Boris Slutsky, Felipe Vallini

  • 1Department of Electrical and Computer Engineering, University of California at San Diego, La Jolla, CA 92093-0407, USA. qigu@ucsd.edu

Optics Express
|July 12, 2013
PubMed
Summary
This summary is machine-generated.

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The Purcell effect modifies spontaneous emission in semiconductor lasers. Our model reveals that accurate Purcell factor calculations require including cavity boundaries and emitter interactions.

Area of Science:

  • Quantum optics
  • Semiconductor device physics

Background:

  • The Purcell effect describes how cavity environments alter spontaneous emission rates.
  • Existing models often simplify the complex interactions within semiconductor lasers.

Purpose of the Study:

  • To formally treat the Purcell effect in sub-wavelength semiconductor lasers.
  • To clarify the assumptions underlying Purcell factor calculations.
  • To propose a more accurate method for evaluating the Purcell effect.

Main Methods:

  • Utilizing non-relativistic quantum electrodynamics (QED).
  • Applying the emitter-field-reservoir model from quantum damping theory.
  • Analyzing modifications to the emitter-field interaction due to the environment.

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Last Updated: May 9, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

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Published on: November 22, 2019

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Carrier Lifetime Measurements in Semiconductors through the Microwave Photoconductivity Decay Method
07:38

Carrier Lifetime Measurements in Semiconductors through the Microwave Photoconductivity Decay Method

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Main Results:

  • Standard Purcell factor expressions are valid only for transparent media, not gain media.
  • The emitter-field interaction is influenced by environmental modifications to the field mode.
  • Accurate Purcell effect evaluation necessitates considering passive cavity boundaries and collective emitter effects.

Conclusions:

  • A more rigorous approach is needed for Purcell effect calculations in semiconductor lasers.
  • Environmental factors, including cavity boundaries and emitter interactions, are crucial.
  • The study refines the understanding of light-matter interaction in nanolasers.