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Effect of 100keV N+ ion irradiation on semi-organic single crystal of L-Arginine phosphate monohydrate single crystal for nonlinear optical applications

Neelam Rani1, B.Riscob2, N. Vijayan3,*, Anuj Krishna3, Pravin kumar4, G. Bhagavannarayana5

1F.G.M. Govt. P.G. College, Mandi Adampur, Hisar-125001,Haryana, India

2Institute of Plasma research, Ahmedabad, Gujarat, India

3CSIR-National Physical Laboratory, New Delhi – 110 012, India

4Inter-university Accelerator Centre, Aruna Asaf Ali Marg, New Delhi -110067, India

5IIIT, RK Valley, AP, India

The potential Semi-organic nonlinear optical material of L-Arginine phosphate monohydrate (LAP) single crystal has been grown by slow evaporation solution growth technique using water as the solvent. The well prepared single crystals of pure LAP were irradiated at room temperature with 100 keV Nitrogen (N+) ions at fluences 1x1016, 5x1016 and 1x1017 ions/cm2. The pure and irradiated LAP single crystals were characterized by different characterization technique. The structural changes were analyzed by means of powder X-ray diffraction analysis. The functional groups of the pure and irradiated compound have been identified by FTIR. The photoluminescence and UV-Vis. absorption were done at room temperature and found that there is insignificant absorption in entire visible region. Vicker’s microhardness technique was used to study effect on mechanical strength of crystal at different ion fluences. The surface studies of the grown and irradiated single crystal were done by using the optical microscope and found that roughness of surface increases with increasing ion fluences.

Keywords: Single crystal, solution growth, non-linear optical material, irradiation

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