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Related Experiment Video

Updated: Jun 16, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
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Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

All-liquid photonic microcavity stabilized by quantum dots.

Tae-Jin Yim1, Thomas Zentgraf, Bumki Min

  • 1Nanoscale Science and Engineering Center, University of California, Berkeley, California 94720, USA.

Journal of the American Chemical Society
|February 4, 2010
PubMed
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We developed simple methods to create stable, liquid-phase toluene microdroplets using quantum dots (QDs). These microdroplets function as high-quality whispering gallery mode resonators, paving the way for all-liquid lasers.

Area of Science:

  • Materials Science
  • Optics
  • Nanotechnology

Background:

  • Whispering gallery mode (WGM) resonators are crucial for photonics.
  • Fabricating stable microscale resonators in liquid environments presents challenges.

Purpose of the Study:

  • To demonstrate simple methods for creating QD-stabilized toluene microdroplets in water.
  • To investigate their potential as WGM microscale resonators in an all-liquid phase.

Main Methods:

  • Utilized two simple fabrication techniques.
  • Employed quantum dots (QDs) for droplet stabilization.
  • Investigated microdroplets in an all-liquid phase (toluene in water).

Main Results:

  • Successfully fabricated QD-stabilized toluene microdroplets.

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Last Updated: Jun 16, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

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Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing

Published on: March 13, 2013

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

  • Observed size-dependent high Q-factors up to 5100.
  • Demonstrated stable resonator performance in the QD-loaded microdroplets.

    • Conclusions:

    • QD-stabilized toluene microdroplets are effective WGM resonators.
    • The all-liquid phase resonators show promise for developing all-liquid lasers.