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.

对于干涉和全息中的两种颜色激光方案，我们基于数值研究揭示了叠加激光束峰值强度的聚焦区域（扩展）的显着贡献，并通过数学计算证实了这一点。具有更宽区域峰值强度的脉冲会产生更好的干涉图案，从而导致更高的调制深度。此外，这种具有更强强度梯度的光束增强了频率失谐（差异）的范围，这将改进实验以产生更好的全息图。使用最常用的高斯光束对使用此类光束获得的结果进行比较，以更好地理解全息技术进步的概念。