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Dielectric, etching and Z-scan studies of glycine doped potassium thiourea chloride crystal

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17 gru 2016

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Glycine doped PTC single crystal.
Glycine doped PTC single crystal.
(a) dielectric constant and (b) dielectric loss of PTC and glycine doped PTC crystals.
(a) dielectric constant and (b) dielectric loss of PTC and glycine doped PTC crystals.
Etch patterns of the crystal after (a) 0 s, (b) 10 s, (c) 20 s, (d) 40 s.
Etch patterns of the crystal after (a) 0 s, (b) 10 s, (c) 20 s, (d) 40 s.
Z-scan transmittance curve with (a) close and (b) open aperture.
Z-scan transmittance curve with (a) close and (b) open aperture.

Z-scan setup and TONLO parameters of the grown crystal_

Parameters and notationsMagnitude
Laser wavelength (λ)632.8 nm
Lens focal length (f)30 mm
Optical path distance (Z)85 cm
Beam waist radius (ωa)3.3 mm
Aperture radius (ra)2 mm
TONLO susceptibility (χ3)6.99 × 10−6esu
Absorption coefficient (β)1.61 × 10−6 cm/W
Nonlinear refraction (n2)7.27 × 10−12 cm2/W