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Efficient broadband spectrum oscillation was obtained directly from a laser-diode-pumped Kerr-lens mode-locked Yb:YAG laser with intracavity nonlinear media. The spectrum was expanded to around 1040 nm to 1070 nm. The spectrum is much broader than the fluorescence spectrum at 1050 nm.
We present a procedure for simultaneous optimization of efficiency-bandwidth product and superfluorescence noise suppression in ultrabroadband high-energy optical parametric chirped pulse amplification. Gain dependence of parameters makes stage-by-stage signal chirp optimization necessary in multi-stage amplification.
We report the laser performance of diode-pumped Yb3+:YLF and Yb3+:CaF2 crystals operating in continuous wave (CW) and quasi-CW lasing at room temperature with high efficiency power. Furthermore we probed thermal effects on the materials.
Three-photon fluorescence and lasing from ZnSe was observed for a kilojoule-class, 100 picosecond pulse, Nd:glass laser excitation. In this work, the emission properties and its excitation energy dependence were investigated for low and high-energy excitation.
We report neutral dissociation of oxygen and methane in femtosecond laser field through superexcited states. Moreover, the lifetime of the superexcited state is measured by pump and probe technique to be about few hundred femtosecond.
We demonstrate compact integration of 780 and 850-nm vertical-cavity surface-emitting lasers into a micro-fluidic microsystem. Absorption at 850 nm and fluorescence pumping at 780 nm of near-infrared fluorescent molecules are presented.
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