Imaging with a steerable photonic nanojet probe

Mirza Karamehmedovic; Kenneth Scheel; Frederik Listov-Saabye Pedersen; Poul-Erik Hansen

doi:10.1117/12.2633442

3 October 2022 Imaging with a steerable photonic nanojet probe

Mirza Karamehmedovic, Kenneth Scheel, Frederik Listov-Saabye Pedersen, Poul-Erik Hansen

Proceedings Volume 12203, Enhanced Spectroscopies and Nanoimaging 2022; 1220306 (2022) https://doi.org/10.1117/12.2633442
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

The lateral and vertical resolution in conventional optical microscopy is restricted by fundamental diffraction limits. One direction towards super-resolution optical microscopy is the use of photonic nanojets (PNJs) for sample illumination. Here, the aim is to exploit the high spatial localization of PNJs to allow measurements of sub-classical particles and features in spite of their small size compared to the operating wavelength. The applications of super-resolution methods include fluorescence and Raman microscopy, scatterometric measurements, and optical imaging. As a step towards PNJ scanning microscopy, we here apply our recently proposed method for fast and precise steering of PNJs over a large dynamical range in the near field. In a proof-of-concept computation, we use the steerable optical probe to extract information on structures beyond the classical lateral and vertical resolution limits.

Citation Download Citation

Mirza Karamehmedovic, Kenneth Scheel, Frederik Listov-Saabye Pedersen, and Poul-Erik Hansen "Imaging with a steerable photonic nanojet probe", Proc. SPIE 12203, Enhanced Spectroscopies and Nanoimaging 2022, 1220306 (3 October 2022); https://doi.org/10.1117/12.2633442

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