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Micromachining of Diffractive Optical Elements Embedded in Bulk Fused Silica by Nanosecond Pulses

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Salgado Remacha, Francisco Javier and Sánchez Brea, Luis Miguel and Bernabeu Martínez, Eusebio (2011) Micromachining of Diffractive Optical Elements Embedded in Bulk Fused Silica by Nanosecond Pulses. Journal of Lightwave Technology, 29 (6). pp. 850-855. ISSN 0733-8724

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Official URL: http://dx.doi.org/10.1109/JLT.2011.2104939


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Abstract

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.


Item Type:Article
Additional Information:

© 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.

Uncontrolled Keywords:Femtosecond Laser-Pulses, Transparent Materials, Glass, Fabrication, Holograms, Storage
Subjects:Sciences > Physics > Optics
ID Code:26146
Deposited On:16 Jul 2014 11:47
Last Modified:16 Jul 2014 11:47

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