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About the estimation of degree of coherence for circularly polarized waves
1Zenkova C.Yu., 2Gorsky M.P., 2Gorodynska N.V.

1Optics and Spectroscopy Department, Chernivtsi National University, 2 Kotsyubinsky St., 58012 Chernivtsi, Ukraine
2Department of Correlation Optics, Chernivtsi National University, 2 Kotsyubinsky St., 58012 Chernivtsi, Ukraine 

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In this work we propose a technique of field polarisation modulation for determining degree of coherence for the circularly polarised waves. The processes of three-wave interaction are studied in connection with the problems of applied polarisation holography and, in particular, polarisation-sensitive diffraction gratings. We also demonstrate an important part of the reference circularly polarised wave in transformation of spatial polarisation distribution into a depth of visibility modulation of the resulting distribution, which can be metrologically estimated and analysed.

Keywords: polarisation, degree of coherence, state of polarisation, polarisation grating

PACS: 42.25.Kb, 42.25.Hz
UDC: 535.41
Ukr. J. Phys. Opt. 11 127-137   doi: 10.3116/16091833/11/3/127/2010
Received: 05.03.2010
After revision: 15.05.2010
 

Анотація. У даній роботі нами запропоновано метод модуляції поляризаційного поля для визначення ступеня когерентності циркулярно поляризованих хвиль. Досліджено процес трьох-хвильової взаємодії стосовно прикладної поляризаційної голографії і, зокрема, поляризаційно чутливих дифракційних граток. Продемонстровано важливу участь предметної циркулярно поляризованої хвилі у перетворенні просторового розподілу поляризації в глибину видимості модуляції результуючого розподілу, який може бути метрологічно оціненим і проаналізованим
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