Nonlinear Imaging using Object-Dependent Illumination

PLUTO / PLUTO-2 Spatial Light Modulators
Imaging/ Image Processing
Published on:
Authors: Jen-Tang Lu, Alexandre S. Goy and Jason W. Fleischer
Abstract:

“Nonlinear imaging systems can surpass the limits of linear optics, but nearly all rely on physical media and atomic/molecular response to work. These materials are constrained by their physical properties, such as frequency selectivity, environmental sensitivity, time behavior, and fixed nonlinear response. Here, we show that electro-optic spatial light modulators (SLMs) can take the place of traditional nonlinear media, provided that there is a feedback between the shape of the object and the pattern on the modulator. This feedback creates a designer illumination that generalizes the field of adaptive optics to include object-dependent patterns. Unlike physical media, the SLM response can provide a wide range of mathematical functions, operate over broad bandwidths at high speeds, and work equally well at high power and single-photon levels. We demonstrate the method experimentally for both coherent and incoherent light.”

Open Access

Publication: Scientific Reports
Issue/Year: Scientific Reports Volume 9, Article number: 725 (2019)
DOI: 10.1038/s41598-018-37030-7
Link: https://doi.org/10.1038/s41598-018-37030-7

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