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Spatiotemporal Control of Protein Activity through Optogenetic Allosteric Regulation

Spatiotemporal Control of Protein Activity through Optogenetic Allosteric Regulation

Published on: October 4, 2024

Spatiotemporal light control with active metasurfaces.

Amr M Shaltout¹, Vladimir M Shalaev², Mark L Brongersma³

¹Geballe Lab for Advanced Materials, Stanford University, Stanford, CA 94305, USA.

Science (New York, N.Y.)

|May 18, 2019

Summary

Researchers are exploring time-domain structuring of optical metasurfaces for advanced light control. This dynamic approach promises revolutionary flat optics for active wavefront shaping in emerging technologies.

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Area of Science:

Optics and Photonics
Materials Science
Nanotechnology

Background:

Optical metasurfaces enable light control via spatial material structuring.
Maxwell's equations' space-time duality suggests temporal structuring can enhance optical control.

Purpose of the Study:

To explore the potential of time-domain structuring of optical metasurfaces.
To investigate new materials and nanostructures for dynamic optical property changes.
To understand emerging physics in ultrafast tunable metasurfaces.

Main Methods:

Development of novel materials and nanostructures.
Investigation of ultrafast tuning mechanisms for metasurfaces.
Exploration of space-time duality principles in optical systems.

Main Results:

Emerging physics includes Doppler effect emulation, Lorentz nonreciprocity, time-reversed optics, and negative refraction.
Ultrafast tuning of metasurfaces is becoming achievable.
Potential for dynamic flat optics with active wavefront shaping.

Conclusions:

Time-domain structuring of optical metasurfaces offers expanded control over light.
Advancements rely on materials with fast, large optical property changes.
Dynamic flat optics could revolutionize technologies needing compact, efficient wavefront shaping.