Wavelength tuning of femtosecond pulses generated in nonlinear crystals by using diffractive lenses
We demonstrate that diffractive lenses (DLs) can be used as a simple method to tune the central wavelength of femtosecond pulses generated from second-order nonlinear optical processes in birefringent crystals. The wavelength tunability is achieved by changing the relative distance between the nonli...
| Autores: | , , , , , , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2010 |
| País: | España |
| Recursos: | Universidad de Salamanca (USAL) |
| Repositorio: | GREDOS. Repositorio Institucional de la Universidad de Salamanca |
| OAI Identifier: | oai:gredos.usal.es:10366/123370 |
| Acesso em linha: | http://hdl.handle.net/10366/123370 |
| Access Level: | acceso abierto |
| Palavra-chave: | Nonlinear optics Femtosecond lasers Diffractive lens 2209.10 Láseres 2209.13 Óptica no lineal |
| Resumo: | We demonstrate that diffractive lenses (DLs) can be used as a simple method to tune the central wavelength of femtosecond pulses generated from second-order nonlinear optical processes in birefringent crystals. The wavelength tunability is achieved by changing the relative distance between the nonlinear crystal and the DL, which acts in a focusing configuration. Besides the many practical applications of the so-generated pulses, the proposed method might be extended to other wavelength ranges by demonstrated similar effects on other nonlinear processes, such as high-order harmonic generation. |
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