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Effect of high energy ion irradiation on electrical and optical properties of organic nonlinear optical crystals

✍ Scribed by P Sreeramana Aithal; HS Nagaraja; P Mohan Rao; DK Avasthi; Asati Sarma

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
344 KB
Volume
48
Category
Article
ISSN
0042-207X

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✦ Synopsis

Two new organic nonlinear single crystals viz., Methyl hydroxy benzoate (MHB) and p-hydroxyAcetophenone (HAP) are irradiated with swift heavy ions Ag 100 MeV and Si 50-100 MeV, from the 15 UD pelletron at NSC Delhi. Hydrogen depth profiling was carried out by using ERDA technique. The effect of irradiation on the dielectric, nonlinearopticalproperties have been investigated. A dramatic increase in the value of the dielectric constant was observed in both MHB and HAP. The dielectric constants increased by IO-13 times, The refractive index values were also increased. However the second harmonic generation efficiency of these crystals were only marginally affected.

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Effects of 50 MeV Si ion irradiation on
Effects of 50 MeV Si ion irradiation on nonlinear optical benzimidazole single crystals
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## Abstract The 50 MeV Si^7+^ ion irradiation induced modifications on structural, dielectric, optical and mechanical properties of Vertical Bridgman grown benzimidazole (BMZ) crystals were studied. The high resolution X‐ray diffraction studies show the quality of as grown BMZ and irradiated BMZ cr