Uncovering the remarkable contribution of lasers peak intensity region in holography
Lohit Malik, A. Escarguel, Mayank Kumar, Abhishek Tevatia, Rajpal S. Sirohi
Abstract
Abstract For the scheme of two colour lasers in interference and holography, we uncover the remarkable contribution of the focusing region (spread) of the peak intensity of superposing laser beams based on the numerical studies and confirm it by mathematical calculations. The pulses having peak intensity for a wider region create a better interference pattern, leading to higher modulation depth. Also, such beams having a stronger intensity gradient enhance the range of frequency detuning (difference), which would improve experimentation towards generating better holograms. A comparison of the results achieved with such beams is done with the most commonly used Gaussian beams, for better understanding of the concept towards advancements in holography.