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Direct Stochastic Optical Reconstruction Microscopy of Extracellular Vesicles in Three Dimensions

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Superresolution via enhanced evanescent tunneling.

Alessandro Salandrino¹, Demetrios N Christodoulides

¹Center for Research and Education in Optics and Lasers (CREOL)/College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA. a.salandrino@gmail.com

|February 18, 2011

Summary

We introduce enhanced evanescent tunneling (EET) to significantly boost wave transmission across gaps. This breakthrough enables superresolution imaging by probing evanescent waves, with potential applications across physics.

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Area of Science:

Optics and Photonics
Wave Phenomena
Superresolution Imaging

Background:

Evanescent waves decay exponentially in forbidden regions.
Frustrated total internal reflection offers limited enhancement of evanescent wave transmission.
Probing evanescent waves is crucial for sub-wavelength imaging.

Purpose of the Study:

To introduce and theoretically analyze enhanced evanescent tunneling (EET).
To demonstrate significant enhancement of evanescent wave transmission.
To show the application of EET for superresolution imaging.

Main Methods:

Theoretical analysis of wave propagation.
Introduction of a control field to manipulate evanescent waves.
Mathematical modeling of transmission across a forbidden gap.

Main Results:

Enhanced evanescent tunneling increases transmission by orders of magnitude.
EET surpasses the capabilities of frustrated total internal reflection.
The method allows probing of both amplitude and phase of evanescent waves.

Conclusions:

Enhanced evanescent tunneling is a novel phenomenon with significant potential.
EET enables high-resolution imaging beyond the diffraction limit.
The principle of EET may be applicable to various wave tunneling phenomena in physics.