RT Journal Article
T1 Micromachining of Diffractive Optical Elements Embedded in Bulk Fused Silica by Nanosecond Pulses
A1 Salgado Remacha, Francisco Javier
A1 Sánchez Brea, Luis Miguel
A1 Bernabeu Martínez, Eusebio
AB Micro-optical devices embedded in transparent materials are usually manufactured focusing a pulsed laser in bulk fused silica. Under this condition, pulsewidth becomes the most important parameter that rules the size of the inscriptions. Ultrafast pulses (pico- and femtosecond pulses) avoid thermal effects and the results present a high efficiency. Nevertheless, nanosecond lasers are more available due the reduced costs. Therefore, a study of the optical behavior of embedded elements micromachined by nanosecond pulses is required. In this study, we show that this regime of pulses can still be used for engraving diffractive optical elements in transparent materials, regardless of the thermal damage. A Fresnel zone plate and a far-field beam shaper have been manufactured as an example of the functionality of these devices.
PB IEEE - Inst. Electrical Electronics Engineers Inc.
SN 0733-8724
YR 2011
FD 2011-03-15
LK https://hdl.handle.net/20.500.14352/44276
UL https://hdl.handle.net/20.500.14352/44276
LA eng
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NO © 2011 IEEE.Manuscript received September 07, 2010; revised December 20, 2010; accepted December 30, 2010. Date of publication January 10, 2011; date of current version March 04, 2011. This work was supported by the Ministerio de Ciencia e Innovación under Project DPI2008-02391. The work of F. J. Salgado-Remacha was supported by the Ministerio de Ciencia e Innovación.
NO Ministerio de Ciencia e Innovación (MICINN), España
DS Docta Complutense
RD 7 may 2024