We predict that broadband efficient third-harmonic generation （THG） can be achieved with a frequency-doubling crystal and a novel composite KD＊P tripler. The composite KD＊P triplet is made of two partially deutera...We predict that broadband efficient third-harmonic generation （THG） can be achieved with a frequency-doubling crystal and a novel composite KD＊P tripler. The composite KD＊P triplet is made of two partially deuterated KDP crystals with different deuteration levels by using the thermal bonding technique. The deuteration level of a partially deuterated KDP crystal ＆ used as a degree of freedom to alter the phase-matching （PM） wavelength. Simulations show that the composite KD＊P tripler can improve third-harmonic conversion efficiencies over a very wide band of input fundamental frequencies. In terms of robustness, alignment and stability, this THG scheme should be more promising than other broadband THG approaches because the composite KD＊P triplet is a monolithic device.展开更多
基金Supported by the High-Temperature High-Density Plasma Key Laboratory Foundation of CAEP under Grant No 9140C6803010802, the National Natural Science Foundation of China under Grant No 60708007, and the Science and Technology Development Foundation of CAEP under Grant No 2008B0401043.
文摘We predict that broadband efficient third-harmonic generation （THG） can be achieved with a frequency-doubling crystal and a novel composite KD＊P tripler. The composite KD＊P triplet is made of two partially deuterated KDP crystals with different deuteration levels by using the thermal bonding technique. The deuteration level of a partially deuterated KDP crystal ＆ used as a degree of freedom to alter the phase-matching （PM） wavelength. Simulations show that the composite KD＊P tripler can improve third-harmonic conversion efficiencies over a very wide band of input fundamental frequencies. In terms of robustness, alignment and stability, this THG scheme should be more promising than other broadband THG approaches because the composite KD＊P triplet is a monolithic device.
