Investigations on aqueous solution grown L-Arginine Phosphate monohydrate (LAP) single crystals for efficient THz generation

dc.contributor.author Arjun, K.
dc.contributor.author Ganesh, D.
dc.contributor.author Karthick, S.
dc.contributor.author Santha, A.
dc.contributor.author Venkatesh, M.
dc.contributor.author Ganesamoorthy, S.
dc.contributor.author Brahadeeswaran, S.
dc.contributor.author Chaudhary, A. K.
dc.date.accessioned 2022-03-26T14:46:03Z
dc.date.available 2022-03-26T14:46:03Z
dc.date.issued 2021-12-01
dc.description.abstract Single crystals of L-arginine phosphate monohydrate (LAP) with dimensions of 15 × 10 × 3.5 mm3 were grown by solution cooling method from its aqueous solution. The crystalline phase formation of the synthesized LAP was confirmed using powder X-ray diffraction measurements. Typical morphology of the spontaneously grown LAP crystal was ascertained through optical microscope. The LAP crystal was explored for its ability to generate Terahertz waves by employing a Ti: sapphire laser of 800 nm wavelength, 140 fs pulses, at 80 MHz repetition rate. It is reported, for the first time to the best of our knowledge, that the LAP crystal was capable of generating THz radiation in the range between 0.1 and 2.0 and that there was a gradual enhancement of the THz output power when the input power was increased from 500 to 1200 mW. The optical to THz conversion efficiency of LAP crystal was measured to be about 0.7 × 10−5 which is considerably higher than the well-known inorganic material ZnTe, even with its larger area. Further, the refractive index and absorption coefficient measured for the crystal were found to vary between 1.2 and 1.65 and 5 and40 cm−1 respectively in the range between 0.1 and 2.0 THz. The coherence length of the LAP was theoretically calculated to be about 400 mm at 0.8 THz.
dc.identifier.citation Journal of Crystal Growth. v.575
dc.identifier.issn 00220248
dc.identifier.uri 10.1016/j.jcrysgro.2021.126337
dc.identifier.uri https://www.sciencedirect.com/science/article/abs/pii/S0022024821003122
dc.identifier.uri https://dspace.uohyd.ac.in/handle/1/2215
dc.subject A1. Crystal morphology
dc.subject A1. Recrystallization
dc.subject A2. Growth from solutions
dc.subject A2. Single crystal growth
dc.subject B2. Nonlinear optic materials
dc.subject B3. Harmonic generators
dc.title Investigations on aqueous solution grown L-Arginine Phosphate monohydrate (LAP) single crystals for efficient THz generation
dc.type Journal. Article
dspace.entity.type
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