V K Wadhawan
Articles written in Pramana – Journal of Physics
Volume 3 Issue 6 December 1974 pp 370-376 Experimental Techniques
Effect of crystal and collimator misalignments on Bragg angle measurements
A mathematical analysis has been made of the combined effect of crystal and collimator misalignments on Bragg angles measured from zero-layer Weissenberg photographs. The results obtained here have been compared with those available for Bond’s method of measuring Bragg angles with diffractometers. The comparison shows that, for a given amount of crystal and collimator misalignments, Bond’s method and the 2 θ-method do not give identical results for small and intermediate Bragg angles.
Volume 44 Issue 1 January 1995 pp 45-53
A comparative study of laser second harmonic generation in some crystals
G C Bhar A M Rudra P K Datta U N Roy V K Wadhawan T Sasaki
Comparison of the conversion efficiency for efficient second-harmonic generation of Nd: YAG laser radiation is reported for KDP, LAP, KTP, BBO and LBO crystals. Conversion efficiencies as high as 50% and 46% were obtained for our laboratory-grown KDP and LAP crystals respectively, for power densities well below their damage thresholds.
Volume 97, 2023
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