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We present two-dimensional spectroscopic data characterizing ultrafast coherent dynamics of Bacteriochlorophyll-a using a degenerate optical parametric amplifier as the pump and probe light source.
We describe a novel nonlinear spectroscopy method that combines the high sensitivity of background-free heterodyne-detected 2D electronic spectroscopy with Stark spectroscopy for observation of ultrafast charge-transfer kinetics. We demonstrate the method on the photosystem II reaction center.
We have developed a rock cutting mechanism for in situ planetary exploration based on abrasive diamond impregnated wire. Performance characteristics of the rock cutter, including cutting rate on several rock types, cutting surface lifetime, and cut rock surface finish are presented. The rock cutter was developed as part of a broader effort to develop an in situ automated rock thin section (IS-ARTS)...
We describe a 13 nJ, 100 fs, 60 MHz Yb:Fiber ANDi oscillator that pumps a MgO2:PPLN optical parametric oscillator (OPO), producing up to 300 mW (signal+idler) of total output, and overall efficiency of 37%.
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