Effect of experimental parameters on optimal transmission of light through opaque media
arXiv:1502.07985 · doi:10.1103/PhysRevA.90.053826
Abstract
Spatial light modulator (SLM) controlled transmission of light through opaque media is a relatively new experimental method with wide applications in various fields. While there has been a surge in research into the technique, there has been little work reported considering the effects of various experimental parameters on the efficiency of optimization. In this study, we explore the effects of various experimental conditions on optimization and find that the intensity enhancement depends on the number of modulated channels, number of phase steps, feedback integration radius, beam spot size, and active SLM area. We also develop a model, based on the propagation of a Gaussian beam with a random phase front, to account for most of the measured effects.
arXiv comment12 pages, 14 figures
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- Optical scheme for cryptographic commitments with physical unclonable keys
- Focusing through scattering medium: a fundamental trade-off between speckle size and intensity enhancement