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Aswathappa S, Palaniyasan E, Dhas Sathiyadhas SJ, Jayaperumal KS, Paramasivam S, Sonachalam A, Dhas Sathiyadhas Amalapushpam MB. Shock wave induced defect engineering on structural and optical properties of pure and dye doped potassium dihydrogen phosphate crystals. Z KRIST-CRYST MATER 2020. [DOI: 10.1515/zkri-2020-0017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Based on the importance of the shock recovery experiments, the authors report the structural and optical properties of pure and 0.001 M dye-doped potassium dihydrogen phosphate (KDP) crystals for virgin and shock wave loaded samples. Rhodamine B and Methylene blue dyes are selected as dopants to be doped with KDP crystal for the present investigation. The test crystals of pure and doped KDP crystals are grown by slow evaporation technique and cut and polished crystals of (200) face are used for the present investigation. Table-top pressure driven shock tube is utilized for the shock wave generation and the used functional Mach number is 1.7. Virgin and shock wave loaded test crystals’ surface morphology, structural properties and optical transmissions are observed using optical microscope, powder X-ray diffractometer and UV-Visible spectrometer, respectively. Crystalline nature and optical transmission of pure and doped KDP crystals are found to have reduced by the impact of shock waves. It occurs due to the enhancement of defect concentration on the surface of the test crystals. From the observed results, we assert that the pure KDP crystal is relatively more stable to shock wave induced damage compared to doped KDP crystals as reflected by structural and optical studies.
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Affiliation(s)
- Sivakumar Aswathappa
- Department of Physics , Abdul Kalam Research Center, Sacred Heart College , Tirupattur , Vellore , 635601 , Tamil Nadu , India
| | - Eniya Palaniyasan
- Department of Physics , Periyar University , Salem , 636011 , Tamil Nadu , India
| | | | | | - Sivaprakash Paramasivam
- Centre for High Pressure Research, School of Physics , Bharathidasan University , Tiruchirapalli , 620024 , Tamil Nadu , India
| | - Arumugam Sonachalam
- Centre for High Pressure Research, School of Physics , Bharathidasan University , Tiruchirapalli , 620024 , Tamil Nadu , India
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Shaikh RN, Anis M, Shirsat MD, Hussaini SS. Study on optical properties of l-valine doped ADP crystal. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt C:1243-1248. [PMID: 25456665 DOI: 10.1016/j.saa.2014.10.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 08/17/2014] [Accepted: 10/07/2014] [Indexed: 06/04/2023]
Abstract
Single crystal of l-valine doped ammonium dihydrogen phosphate has been grown by slow evaporation method at room temperature. The crystalline nature of the grown crystal was confirmed using powder X-ray diffraction technique. The different functional groups of the grown crystal were identified using Fourier transform infrared analysis. The UV-visible studies were employed to examine the high optical transparency and influential optical constants for tailoring materials suitability for optoelectronics applications. The cutoff wavelength of the title crystal was found to be 280nm with wide optical band gap of 4.7eV. The dielectric measurements were carried to determine the dielectric constant and dielectric loss at room temperature. The grown crystal has been characterized by thermogravimetric analysis. The second harmonic generation efficiency of the grown crystal was determined by the classical Kurtz powder technique and it is found to be 1.92 times that of potassium dihydrogen phosphate. The grown crystal was identified as third order nonlinear optical material employing Z-scan technique using He-Ne laser operating at 632.8nm.
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Affiliation(s)
- R N Shaikh
- Crystal Growth Laboratory, Department of Physics, Milliya Arts, Science and Management Science College, Beed 431122, Maharashtra, India
| | - Mohd Anis
- Crystal Growth Laboratory, Department of Physics, Milliya Arts, Science and Management Science College, Beed 431122, Maharashtra, India
| | - M D Shirsat
- Intelligent Materials Research Laboratory, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, Maharashtra, India
| | - S S Hussaini
- Crystal Growth Laboratory, Department of Physics, Milliya Arts, Science and Management Science College, Beed 431122, Maharashtra, India.
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