Holographic spatiotemporal lens
| Autor: | Yoshio Hayasaki, Kouhei Kimura, Satoshi Hasegawa |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Femtosecond pulse shaping
Spatial light modulator Materials science business.industry Physics::Optics law.invention Lens (optics) Optics Multiphoton intrapulse interference phase scan law Femtosecond Physics::Atomic and Molecular Clusters Chirp Focal length Optoelectronics Physics::Atomic Physics business Ultrashort pulse |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.874329 |
| Popis: | We propose a holographic spatiotemporal lens to improve spatial resolution of two-photon excitation spot as a new focusing technique of femtosecond laser pulse. Femtosecond laser pulses dispersed by a diffraction grating are irradiated to a chirped diffractive lens displayed on a spatial light modulator. The chirped diffractive lens has a spatially chirp of focal length for a design for its corresponding wavelength. The shortest pulse was experimentally obtained only at the focal plane. The pulse duration was also supported with a computer simulation. |
| Databáze: | OpenAIRE |
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