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This article is cited in 4 scientific papers (total in 4 papers)
OPTO-IT
Sharp resonant focusing of light by a dielectric cylinder with square cross-section and cube
D. A. Kozlovab, E. S. Kozlovaab, V. V. Kotlyarab a Samara National Research University, Samara, Russia
b Image Processing Systems Institute îf the RAS – Branch of the FSRC “Crystallography and Photonics” RAS, Samara, Russia
Abstract:
In this paper a research on conditions for resonance excitation in a homogeneous dielectric cylinder with square cross-section is conducted using a FDTD-method. It is shown that in a cylinder with square cross-section resonant modes similar to whispering gallery modes can be excited, which allows one to reduce the transverse dimensions of the focal spot. FDTD method demonstrates an acceptable accuracy of the resonant mode detection. A similar result is obtained for a cube on a dielectric substrate: it is possible to achieve the reduction of the transverse dimensions of the focal spot by changing the corresponding cube size.
Keywords:
dielectric cylinder, resonance, light focusing.
Received: 07.06.2016 Accepted: 29.08.2016
Citation:
D. A. Kozlov, E. S. Kozlova, V. V. Kotlyar, “Sharp resonant focusing of light by a dielectric cylinder with square cross-section and cube”, Computer Optics, 40:4 (2016), 431–438
Linking options:
https://www.mathnet.ru/eng/co236 https://www.mathnet.ru/eng/co/v40/i4/p431
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Abstract page: | 178 | Full-text PDF : | 47 | References: | 25 |
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