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This article is cited in 3 scientific papers (total in 3 papers)
Laser microscope
Superresolution effect on a microstep phase image in a laser heterodyne microscope
I. M. Akhmedzhanova, D. V. Baranova, E. M. Zolotova, Yu. I. Shupletsovab a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
b Institute of Legislation and Comparative Law under the Government of the Russian Federation, Moscow
Abstract:
The possibility of achieving superresolution on a microstep phase image in a laser scanning differential heterodyne microscope is studied both heoretically and experimentally. The superresolution is estimated as the width ratio for the amplitude and phase components of the microscope response measured at half the height of the corresponding parts of the response. It is shown theoretically that superresolution greatly exceeding unity can be achieved for an object in the form of a phase microstep introducing a phase shift equal to π. Superresolution of ~2 is experimentally obtained for certified test micro-objects. A possibility of tuning a test sample into the superresolution regime by shifting a point photodetector in the microscope's Fourier plane is demonstrated.
Keywords:
superresolution, heterodyne microscopy, phase response, phase image, microscopic object positioning.
Received: 24.12.2018
Citation:
I. M. Akhmedzhanov, D. V. Baranov, E. M. Zolotov, Yu. I. Shupletsova, “Superresolution effect on a microstep phase image in a laser heterodyne microscope”, Kvantovaya Elektronika, 49:7 (2019), 698–706 [Quantum Electron., 49:7 (2019), 698–706]
Linking options:
https://www.mathnet.ru/eng/qe17071 https://www.mathnet.ru/eng/qe/v49/i7/p698
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Abstract page: | 177 | Full-text PDF : | 40 | References: | 34 | First page: | 13 |
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