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Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

Wide field super-resolution surface imaging through plasmonic structured illumination microscopy.

Feifei Wei¹, Dylan Lu, Hao Shen

¹Department of Electrical and Computer Engineering and ‡Materials Science and Engineering Program, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0407, United States.

|July 12, 2014

Summary

We developed plasmonic structured illumination microscopy (PSIM), a super-resolution imaging method using surface plasmon interference. PSIM significantly enhances resolution for wide-field, surface imaging, benefiting high-speed biomedical applications.

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Area of Science:

Optics and Photonics
Biomedical Imaging
Nanotechnology

Background:

Structured Illumination Microscopy (SIM) offers super-resolution but has limitations.
Surface Plasmon (SP) waves possess unique optical properties.
Overcoming diffraction limits is crucial for advanced imaging.

Purpose of the Study:

To demonstrate a novel wide-field super-resolution imaging technique.
To enhance resolving power by integrating SP interference with SIM.
To explore applications in high-speed biomedical imaging.

Main Methods:

Developed plasmonic structured illumination microscopy (PSIM).
Combined tunable surface plasmon interference (SPI) with SIM.
Replaced conventional laser interference fringes with SPI patterns.

Main Results:

Achieved significantly enhanced resolving power compared to conventional SIM.
Demonstrated a wide-field, surface super-resolution imaging capability.
Validated the effectiveness of SP waves in improving image resolution.

Conclusions:

PSIM is a viable technique for achieving super-resolution imaging.
The integration of SP interference offers superior resolution.
PSIM holds promise for high-speed biomedical imaging applications.