Metasurface-stabilized optical microcavities

Marcus Ossiander*, Maryna Leonidivna Meretska, Sarah Rourke, Christina Spägele, Xinghui Yin, Ileana Cristina Benea-Chelmus, Federico Capasso*

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikelBegutachtung

Abstract

Cavities concentrate light and enhance its interaction with matter. Confining to microscopic volumes is necessary for many applications but space constraints in such cavities limit the design freedom. Here we demonstrate stable optical microcavities by counteracting the phase evolution of the cavity modes using an amorphous Silicon metasurface as cavity end mirror. Careful design allows us to limit the metasurface scattering losses at telecom wavelengths to less than 2% and using a distributed Bragg reflector as metasurface substrate ensures high reflectivity. Our demonstration experimentally achieves telecom-wavelength microcavities with quality factors of up to 4600, spectral resonance linewidths below 0.4 nm, and mode volumes below 2.7 λ3. The method introduces freedom to stabilize modes with arbitrary transverse intensity profiles and to design cavity-enhanced hologram modes. Our approach introduces the nanoscopic light control capabilities of dielectric metasurfaces to cavity electrodynamics and is industrially scalable using semiconductor manufacturing processes.

Originalspracheenglisch
Aufsatznummer1114
FachzeitschriftNature Communications
Jahrgang14
Ausgabenummer1
DOIs
PublikationsstatusVeröffentlicht - Dez. 2023

ASJC Scopus subject areas

  • Allgemeine Chemie
  • Allgemeine Biochemie, Genetik und Molekularbiologie
  • Allgemein
  • Allgemeine Physik und Astronomie

Fields of Expertise

  • Advanced Materials Science

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