Crystalline perfection and optical studies of l-Histidinium dihydrogen phosphate orthophosphoric acid (LHDP) single crystals

•Third order nonlinear properties were studied.•Crystalline perfection is reasonably good.•Single shot surface laser damage threshold is 6.286 GW/cm2 at 532 nm.

Single crystals of l-Histidinium dihydrogenphosphate orthophosphoric acid (LHDP) were grown by slow evaporation solution growth technique. The grown crystals were confirmed by single crystal X-ray diffraction techniques. The HRXRD rocking curve measurements revealed the crystalline perfection of grown crystal and the absence of structural grain boundaries. The lower optical cut-off wavelength for this crystal was observed at 240 nm. The third order nonlinear refractive index (n2), nonlinear absorption coefficient (β) and susceptibility (χ(3)) were calculated by Z-scan studies using Nd: YAG laser as a source. The single shot laser damage threshold of grown crystal was measured to be 6.286 GW/cm2 using Nd: YAG laser.

Graphical abstractDiffraction curve recorded for a typical LHDP single crystal. l-Histidinium dihydrogen phosphate orthophosphoric acid (LHDP) was grown by slow evaporation solution growth technique. Crystalline perfection of grown crystal was studied by HRXRD studies. Third order nonlinear optical susceptibility was calculated by Z-scan technique.Figure optionsDownload full-size imageDownload high-quality image (101 K)Download as PowerPoint slide