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Casimir-Lifshitz Force Based Optical Resonators.

Victoria Esteso1, Sol Carretero-Palacios1,2, Hernán Míguez1

  • 1Institute of Materials Science of Seville , Consejo Superior de Investigaciones Cientı́ficas (CSIC)-Universidad de Sevilla (US) , Américo Vespucio 49 , 41092 Seville , Spain.

The Journal of Physical Chemistry Letters
|August 20, 2019
PubMed
Summary
This summary is machine-generated.

We demonstrate a novel method for creating high-quality optical resonators using levitating thin films. This technique leverages Casimir-Lifshitz forces and common materials for advanced photonic applications.

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Area of Science:

  • Physics
  • Materials Science
  • Optics

Background:

  • Optical resonators are crucial for photonics.
  • Achieving high Q-factor resonators often requires complex fabrication.
  • Dispersion forces can influence nanoscale systems.

Purpose of the Study:

  • To theoretically investigate the construction of optical resonators using levitating thin films.
  • To explore the use of Casimir-Lifshitz forces for tuning optical cavity thickness.
  • To propose a design for high Q-factor optical modes at visible frequencies.

Main Methods:

  • Theoretical investigation of thin film levitation under repulsive Casimir-Lifshitz forces.
  • Modeling the balance between flotation and Casimir-Lifshitz forces.
  • Considering additional forces like electrostatic interactions.
  • Utilizing materials such as silicon oxide, polystyrene, and gold with glycerol.

Main Results:

  • A design for optical resonators with high Q-factor modes at visible frequencies is proposed.
  • The Casimir-Lifshitz forces and flotation enable precise tuning of optical cavity thickness.
  • The feasibility of using common materials and glycerol as a medium is demonstrated.
  • The influence of electrostatic forces on the system is considered.

Conclusions:

  • This work presents a proof of concept for novel photonic architectures.
  • Dispersion forces can be harnessed for designing optical resonators.
  • The proposed method is relevant for developing microfluidic optical resonators.