Concept Paper
Version 1
Preserved in Portico This version is not peer-reviewed
Terahertz Microscopy with Oblique Subwavelength Illumination in near Field
Version 1
: Received: 31 August 2021 / Approved: 1 September 2021 / Online: 1 September 2021 (14:32:47 CEST)
A peer-reviewed article of this Preprint also exists.
Minin, O. V., & Minin, I. V. (2022). Terahertz microscope with oblique subwavelength illumination: design principle. Quantum Electronics, 52(1), 13. Minin, O. V., & Minin, I. V. (2022). Terahertz microscope with oblique subwavelength illumination: design principle. Quantum Electronics, 52(1), 13.
Abstract
Microscopes based on dielectric mesoscale particles, using the effect of a photonic jet or terajet in the terahertz range, are a promising tool for overcoming the diffraction limit. However, the image they generate has limited contrast, which limits the application of this method. In this letter, we demonstrate that it is possible to increase the contrast of an image based on dielectric mesoscale particles that provide the formation of photonic hooks. In this case, the illumination of the object is carried out by an oblique incidence of subwavelength terajet, which significantly (more than 2 times) increases the contrast of the image.
Keywords
photonic hook; terajet; oblique illumination; image contrast
Subject
Physical Sciences, Particle and Field Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment