“Dual Aperture Diffractive Beam Combiner Consisting of Four Holographic Lenses: Application to Visible Light Lithography”. Indian Journal of Pure & Applied Physics (IJPAP) 63, no. 8 (August 6, 2025): 713–718. Accessed May 15, 2026. https://or.niscpr.res.in/index.php/IJPAP/article/view/19586.