Speckle simulation movies for analysis and evaluation of laser systems

摘要

Recent results achieved in the simulation of laser speckle in real-time are presented and discussed. Far field speckle has been simulated by a number of researchers using computer generated random phase screens to develop single frame pictures, however, our simulation develops a speckle picture in time, a movie, that we believe adequately illustrates speckle behavior as reflected from rotating and translating surfaces. The simulation was developed on a coarse array parallel supercomputer and the movies are formatted as QuickTime sequences. These sequences may be viewed on personal computers or workstations using easily obtained presentation software. Of interest is our correlation to speckle produced in the laboratory using lasers and translated surfaces and captured as frame sequences using a CCD camera.