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Optical imaging with nanoscale resolution and a large field of view is highly desirable in many research areas. Unfortunately, it is challenging to achieve these two features simultaneously while using a conventional microscope. An objective lens with a low numerical aperture (NA) has a large field of view but poor resolution. In contrast, a high NA objective lens will have a higher resolution but reduced field of view. In an effort to close the gap between these trade-offs, we introduce an acoustofluidic scanning nanoscope (AS-nanoscope) that can simultaneously achieve high resolution with a large field of view. The AS-nanoscope relies on acoustofluidic-assisted scanning of multiple microsized particles. A scanned 2D image is then compiled by processing the microparticle images using an automated big-data image algorithm. The AS-nanoscope has the potential to be integrated into a conventional microscope or could serve as a stand-alone instrument for a wide range of applications where both high resolution and large field of view are required.
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Fundamental Thickness Bounds for Wide-Field-of-View Metalenses
We show that any aberration-free wide-field-of-view lens system must have a minimal thickness—depending on the field of view, lens diameter, and numerical aperture—that originates from the Fourier transform relation between space and angle.
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- Award ID(s):
- 2146021
- PAR ID:
- 10400226
- Date Published:
- Journal Name:
- Conference on Lasers and Electro-Optics (CLEO)
- Page Range / eLocation ID:
- FF2D.3
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Conference Paper:
- https://doi.org/10.1364/CLEO_QELS.2022.FF2D.3
