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Related Experiment Video

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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

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Subsurface microscopy of integrated circuits with angular spectrum and polarization control.

F H Köklü¹, S B Ippolito, B B Goldberg

¹Department of Physics, Electrical and Computer Engineering and the Photonics Center, Boston University, 8 Saint Mary's Street, Boston, Massachusetts 02215, USA.

|April 17, 2009

Summary

Confocal imaging with an annular pupil-plane aperture and high numerical aperture lens is sensitive to light polarization and angular spectrum. This method achieves 145 nm lateral spatial resolution, improving imaging capabilities.

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Demonstration of a Hyperlens-integrated Microscope and Super-resolution Imaging

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Published on: September 8, 2017

Area of Science:

Optical Imaging
Microscopy
Nanotechnology

Background:

Confocal microscopy is a powerful technique for high-resolution imaging.
The performance of optical systems is often limited by diffraction.
Pupil-plane engineering offers a way to control and enhance imaging properties.

Purpose of the Study:

To investigate the impact of an annular pupil-plane aperture in confocal imaging.
To analyze the influence of polarization and angular spectrum on focal spot characteristics.
To achieve enhanced lateral spatial resolution in optical microscopy.

Main Methods:

Utilizing a confocal imaging setup with a high numerical aperture (NA) lens.
Implementing an annular pupil-plane aperture to modify the light's angular spectrum.
Controlling and analyzing the polarization of the incoming light.

Main Results:

The focal spot shape in confocal imaging is significantly affected by light polarization and angular spectrum.
Demonstrated a lateral spatial resolution of 145 nm (lambda(0)/9).
Resolution was achieved in the direction perpendicular to the light's polarization.

Conclusions:

Annular pupil-plane apertures can be effectively used to control focal spot characteristics in confocal microscopy.
The demonstrated resolution significantly advances the capabilities of optical imaging systems.
This technique holds promise for super-resolution microscopy applications.