Stimulated Raman scattering in hydrogen-filled hollow-core photonic crystal fiber

被引：923

作者：

Benabid, F ^{[1
]}

Knight, JC ^{[1
]}

Antonopoulos, G ^{[1
]}

Russell, PSJ ^{[1
]}

机构：

[1] Univ Bath, Dept Phys, Optoelect Grp, Bath BA2 7AY, Avon, England

来源：

SCIENCE | 2002年 / 298卷 / 5592期

关键词：

D O I：

10.1126/science.1076408

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We report on stimulated Raman scattering in an approximately 1-meter-long hollow-core photonic crystal fiber filled with hydrogen gas under pressure. Light was guided and confined in the 15-micrometer-diameter hollow core by two-dimensional photonic bandgap. Using pulsed laser source (pulse duration, 6 nanoseconds; wavelength, 532 nanometers), the threshold for Stokes (longer wavelength) generation was observed at pulse energies as low as 800 +/- nanojoules, followed by coherent anti-Stokes (shorter wavelength) generation threshold at 3.4 +/- 0.7 microjoules. The pump-to-Stokes conversion efficiency was 30 +/- 3% at pulse energy of only 4.5 microjoules. These energies are almost two orders of magnitude lower than any other reported energy, moving gas-based nonlinear optics to previously inaccessible parameter regimes of high intensity and long interaction length.

引用

页码：399 / 402

页数：4

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