OPTICAL SPECKLE-FIELD VISIBILITY DIMINISHING BY REDUCTION OF A TEMPORAL COHERENCE

Mikhaylo  Vasnetsov; Valeriy  Voytsekhovich; Vladislav Ponevchinsky; Nataliia Kachalova; Alina  Khodko; Oleksanr  Mamuta; Volodymyr Pavlov; Vadym Khomenko; Natalia Manicheva

doi:10.35784/iapgos.5495

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Published: Mar 31, 2024

DOI: https://doi.org/10.35784/iapgos.5495

Issue Vol. 14 No. 1 (2024)

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DOI

https://doi.org/10.35784/iapgos.5495

Authors

Mikhaylo Vasnetsov

mikhail.v.vasnetsov@gmail.com

Institute of Physics of the National Academy of Sciences of Ukraine, Ukraine

https://orcid.org/0000-0002-8634-4896

Valeriy Voytsekhovich

valvvs55@gmail.com

Institute of Physics of the National Academy of Sciences of Ukraine, Ukraine

https://orcid.org/0000-0002-7196-729X

Vladislav Ponevchinsky

Ponevchinsky@nas.gov.ua

Institute of Physics of the National Academy of Sciences of Ukraine, Ukraine

https://orcid.org/0009-0003-7250-3619

Nataliia Kachalova

kachalova.nataliya@gmail.com

1Institute of Physics of the National Academy of Sciences of Ukraine; 2L.M. Litvinenko Institute of Physical and Organic Chemistry and Carbon Chemistry of the National Academy of Sciences of Ukraine, Ukraine

https://orcid.org/0000-0002-9956-5380

Alina Khodko

khodkoalina@gmail.com

Institute of Physics of the National Academy of Sciences of Ukraine, Ukraine

https://orcid.org/0000-0001-5685-1013

Oleksanr Mamuta

mamuta.aleksandr@gmail.com

Institute of Physics of the National Academy of Sciences of Ukraine, Ukraine

https://orcid.org/0000-0002-6404-5879

Volodymyr Pavlov

machinehead6926@gmail.com

Vinnitsia National Technical University, Ukraine

https://orcid.org/0000-0002-0717-7082

Vadym Khomenko

khomenko.vadim@gmail.com

Institute of Physics of the National Academy of Sciences of Ukraine, Ukraine

https://orcid.org/0000-0002-7926-9277

Natalia Manicheva

n.v.manichev@op.edu.ua

Odessа Polytechnic National University, Ukraine

https://orcid.org/0000-0002-3043-5342

Abstract

The paper is a report of an experimental study to suppress the speckle structure of a coherent optical field. The technique proposed is based on the reduction of the temporal coherence utilizing enriching the output spectrum of Nd:YVO₄laser with intra-cavity second harmonic generation by additional emission lines. Temperature-controlled simultaneous emission of two components at 1.063 mm and 1.066 mm with nearly equal intensities in IR is achived. In the second-harmonic output the emission lines 531.7 nm, 532.3 nm and 532.8 nm were recorded. The influence of the spectrum variation on the formation of a speckle field was checked. Successfully removed intensity zeros and reduced contrast (visibility) from 0.92 to 0.65 in a light scattered by a ground glass diffuser at the angle 35°. A simple consideration of the speckle field dumping mechanism is presented.

Keywords:

speckle field, coherence, visibility

References

Arkhelyuk A. D. et al.: Characteristics of polychromatic speckle fields and temporal coherence. Proc. SPIE 8338, 2011, 833805. DOI: https://doi.org/10.1117/12.921140

Baranova N. B. et al.: Wave-front dislocations: topological limitations for adaptive systems with phase conjugation. J. Opt. Soc. Am. 73, 1983, 525–528. DOI: https://doi.org/10.1364/JOSA.73.000525

Born M., Wolf E.: Principles of Optics. Cambridge University Press, Cambridge 1999.

Dayan Li et al.: Speckle suppression by doubly scattering systems. Applied Optics 52, 2013, 8617–8626. DOI: https://doi.org/10.1364/AO.52.008617

Goodman J.: Some fundamental properties of speckle. J. Opt. Soc. Am. 66, 1976, 1145–1150. DOI: https://doi.org/10.1364/JOSA.66.001145

Goodman J. W., Speckle Phenomena in Optics: Theory and Applications, 1st ed. Roberts & Company, 2006, 125–149.

Kompanets I., Zalyapin N.: Methods and Devices of Speckle – Noise Suppression. Optics and Photonics Journal, 10, 2020, 219–250. DOI: https://doi.org/10.4236/opj.2020.1010023

Kukharchuk V. et al.: Features of the angular speed dynamic measurements with the use of an encoder. Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska – IAPGOS 12(3), 2022, 20–26. DOI: https://doi.org/10.35784/iapgos.3035

Nye J., Wright F. J.: Natural Focusing and Fine Structure of Light: Caustics and Wave Dislocations. Am. J. Phys. 68(8), 2000, 776 [https://doi.org/10.1119/1.19543]. DOI: https://doi.org/10.1119/1.19543

Pavlov S. et al.: Electro-optical system for the automated selection of dental implants according to their colour matching. Przegląd elektrotechniczny 93(3), 2017, 121–124. DOI: https://doi.org/10.15199/48.2017.03.28

Schmitt J. M., Xiang S. H., Yung K. M.: Speckle in Optical Coherence Tomography. Journal of Biomedical Optics 4, 1999, 95–105. DOI: https://doi.org/10.1117/1.429925

Turri G. et al.: Temperature-dependent stimulated emission crosssection in Nd3+:YVO4 crystals. J. Opt. Soc. Am. 26(11), 2009. DOI: https://doi.org/10.1364/JOSAB.26.002084

Vasnetsov M., Soskin M., Pasko V.: Topological configurations of cross-coupled polarization singularities in a space-variant vector field. Optics Communications 63, 2016, 181–187. DOI: https://doi.org/10.1016/j.optcom.2015.11.019

Wójcik W., Pavlov S., Kalimoldayev M.: Information Technology in Medical Diagnostics II. London: Taylor & Francis Group, CRC Press, Balkema book, 2019 [https://doi.org/10.1201/ 9780429057618]. DOI: https://doi.org/10.1201/9780429057618

Zhang Z. et al.: Intra-cavity second harmonic generation with Nd:YVO4/BIBO laser at 542 nm. Optics Communications 267, 2006, 487–490. DOI: https://doi.org/10.1016/j.optcom.2006.06.033

Vasnetsov, M., Voytsekhovich, V., Ponevchinsky, V., Kachalova, N., Khodko, A., Mamuta, O., … Manicheva, N. (2024). OPTICAL SPECKLE-FIELD VISIBILITY DIMINISHING BY REDUCTION OF A TEMPORAL COHERENCE. Informatyka, Automatyka, Pomiary W Gospodarce I Ochronie Środowiska, 14(1), 17–20. https://doi.org/10.35784/iapgos.5495

OPTICAL SPECKLE-FIELD VISIBILITY DIMINISHING BY REDUCTION OF A TEMPORAL COHERENCE

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