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Optical frequency up-conversion of femtosecond pulses into targeted single bands in the visible and ultraviolet
Optical frequency up-conversion of femtosecond pulses into targeted single bands in the visible and ultraviolet
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机译:飞秒脉冲的光频率上转换为可见光和紫外光中的目标单波段
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摘要
An apparatus and methods for generating a substantially supercontinuum-free widely-tunable multimilliwatt source of radiation characterized by a narrowband line profile. The apparatus and methods employ nonlinear optical mechanisms in a nonlinear photonic crystal fiber (PCF) by detuning the wavelength of a pump laser to a significant extent relative to the zero-dispersion wavelength (ZDW) of the PCF. Optical phenomena employed for the selective up-conversion in the PCF include, but are not limited to, four-wave mixing and Cherenkov radiation. Tunability is achieved by varying pump wavelength and power and by substituting different types of PCFs characterized by specified dispersion properties.
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