Rajpal S. Sirohi served as Professor of Physics at IIT Madras for more than two decades and as Director of IIT Delhi and Vice Chancellor to several Universities in India. He was a Distinguished Scholar at the Rose-Hulman Institute of Technology, Terre Haute, Indiana; Chair Professor at Tezpur University, Assam, India; and Faculty at Alabama A&M University, Huntsville, Alabama. Professor Rajpal S. Sirohi is now retired and spends his time reading books on the history of science and spends mornings and evenings with his grandchildren. His research areas are optical metrology, optical instrumentation, laser instrumentation, holography, and speckle phenomenon.