21 February 2011 Optical-parametric-amplification imaging of complex objects
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We used ultrafast Fourier-plane optical-parametric-amplification (OPA) imaging to simultaneously image, wavelength-shift, and amplify complex two-dimensional objects with spatial features from 1.1 to 11.3 line-pairs/millimeter, corresponding to a two-dimensional space-bandwidth product (SBP) of 13,790. This represents an increase in image complexity over previous analogous OPA imaging systems by almost three orders of magnitude. In wavelength-shifting the image from 930nm to an idler wavelength of 700nm, we observed image amplification by up to two orders of magnitude.
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Peter M. Vaughan, Rick Trebino, "Optical-parametric-amplification imaging of complex objects", Proc. SPIE 7917, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X, 791712 (21 February 2011); doi: 10.1117/12.874256; https://doi.org/10.1117/12.874256

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