Active wavefront compensation of broadband femtosecond laser pulses through pupil segmentation
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INVESTIGACIONMetadades
Títol
Active wavefront compensation of broadband femtosecond laser pulses through pupil segmentationAutoria
Data de publicació
2014-10Editor
SprigerCita bibliogràfica
LORIOT, V.; MENDOZA YERO, O.; PÉREZ VIZCAÍNO, J., MÍNGUEZ VEGA, G.; LANCIS SÁEZ, J.; DE NALDA, R.; BAÑARES, L. Fresnel phase retrieval method using an annular lens array on an SLM. Applied Physics B-Lasers and Optics v. 117, n. 1 (2014), pp. 67-73Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://link.springer.com/journal/340/117/1/page/1Versió
info:eu-repo/semantics/submittedVersionParaules clau / Matèries
Resum
Wavefront aberrations play a major role when
focusing an ultrashort laser pulse to a high-quality focal
spot. Here, we report a novel method to measure and
correct wavefront aberrations of a 30-fs ... [+]
Wavefront aberrations play a major role when
focusing an ultrashort laser pulse to a high-quality focal
spot. Here, we report a novel method to measure and
correct wavefront aberrations of a 30-fs pulsed laser beam.
The method only requires a programmable liquid-crystal
spatial light modulator and a camera. Wavefront retrieval is
based on pupil segmentation with an annular lens array,
which allows us to determine the local phase that mini-
mizes focusing errors due to wavefront aberrations. Our
method provides accurate results even when implemented
with low dynamic range cameras and polychromatic
beams. Finally, the retrieved phase is added to a diffractive
lens codified onto the spatial light modulator to experi-
mentally demonstrate near-diffraction-limited femtosecond
beam focusing without refractive components. [-]
Publicat a
Applied Physics B-Lasers and Optics v. 117, n. 1 (2014)Drets d'accés
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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