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Domain structure studying in the Pb3(PO4)2
crystals by the imaging polarimeter
Krupych O.M., Kostyrko M.E., Vlokh R.O.
Institute of Physical Optics, 23 Dragomanov Str., 79005,
L’viv, Ukraine
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The imaging polarimeter for the domain structure studying in the Pb3(PO4)2
ferroelastics crystals is constructed. Three blocks of domains S1,
S2 and S3 are observed at room temperature. The differences
in the extinction positions in these blocks are determined as Df12=32.04°
and Df13= -2.83°. In the second
and third domain block the difference between light intensity in extinction
position and diagonal position is smaller than in the first block. It means
that light propagated along Z-axis passes through few different domains.
Obtained results are discussed on the base of Jones matrix approach. It
was shown that studying the orientation of the optical indicatrix in the
neighbouring domains it is necessary to take into account the intensities
of light transmitted through sample in crossed polarizers. The advantage
of the imaging polarimeter for this aim is demonstrated
Key words: imaging polarimeter, ferroelastics, domain structure,
Pb3(PO4)2 crystals
doi 10.3116/16091833/2/2/93/2001 |
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