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Optomechanical coupling in a two-dimensional photonic crystal defect cavity
- Source :
- Scopus-Elsevier
-
Abstract
- Periodically structured materials can sustain both optical and mechanical modes. Here we investigate and observe experimentally the optomechanical properties of a conventional two-dimensional suspended photonic crystal defect cavity with a mode volume of $\sim$$3(\lambda/n)^{3}$. Two families of mechanical modes are observed: flexural modes, associated to the motion of the whole suspended membrane, and localized modes with frequencies in the GHz regime corresponding to localized phonons in the optical defect cavity of diffraction-limited size. We demonstrate direct measurements of the optomechanical vacuum coupling rate using a frequency calibration technique. The highest measured values exceed 250 kHz, demonstrating strong coupling of optical and mechanical modes in such structures.<br />Comment: 11 Pages, 8 Figures
- Subjects :
- Materials science
Phonon
Wave-Guides
Laser
General Physics and Astronomy
FOS: Physical sciences
Physics::Optics
Quantum-Dot
Lambda
law.invention
Flexural strength
law
Calibration
Optomechanics
Photonic crystal
Coupling
business.industry
Microcavities
Nanocavity
Radiation pressure
Quantum dot
Optoelectronics
Whispering-gallery wave
business
Phase modulation
Physics - Optics
Optics (physics.optics)
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Scopus-Elsevier
- Accession number :
- edsair.doi.dedup.....f7861ff1dd9d58d92bf382277148f2a9