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Related Experiment Video

Updated: May 25, 2026

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

A chip-scale integrated cavity-electro-optomechanics platform.

M Winger¹, T D Blasius, T P Mayer Alegre

¹California Institute of Technology, Pasadena, CA 91125, USA.

|January 26, 2012

Summary

This summary is machine-generated.

We developed an integrated nanocavity linking optical and electrical systems. This device enables fast electrical tuning and control of light-matter interactions, paving the way for advanced sensors.

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Area of Science:

Optomechanics
Nanocavity Physics
Electromechanical Systems

Background:

Integrated photonic and electronic devices are crucial for advanced technologies.
Optomechanical systems couple light and mechanical motion, enabling novel functionalities.
Controlling light-matter interactions at the nanoscale is a key research area.

Purpose of the Study:

To present an integrated optomechanical and electromechanical nanocavity system.
To demonstrate wide-range, fast electrical tuning of optical nanocavity resonances.
To showcase electrical control over optomechanical effects like phonon lasing and cooling.

Main Methods:

Coupling a mechanical degree of freedom to an ultrahigh-Q photonic crystal defect cavity and an electrical circuit.
Utilizing electrical signals for tuning optical resonances.
Leveraging optical radiation pressure for electromechanical control.

Main Results:

Achieved wide-range, fast electrical tuning of optical nanocavity resonances.
Demonstrated electrical control of optomechanical back-action effects, including mechanical amplification (phonon lasing), cooling, and stiffening.
Established efficient interconversion of weak microwave and optical signals.

Conclusions:

The integrated optomechanical and electromechanical nanocavity offers a novel platform for signal interconversion.
This device is expected to enable a new generation of micro-sensors.
Optomechanical back-action can be utilized for thermal noise reduction and low-noise optical read-out in sensors.