Tridimensional ablation region in femtosecond laser micromachining with diffractive lenses

S. Torres-Peiró; J. González Ausejo; O. Mendoza-Yero; G. Mínguez-Vega; J. Lancis

doi:10.1117/12.2025698

18 November 2013 Tridimensional ablation region in femtosecond laser micromachining with diffractive lenses

S. Torres-Peiró, J. González Ausejo, O. Mendoza-Yero, G. Mínguez-Vega, J. Lancis

Author Affiliations +

Proceedings Volume 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications; 87852S (2013) https://doi.org/10.1117/12.2025698
Event: 8th Ibero American Optics Meeting/11th Latin American Meeting on Optics, Lasers, and Applications, 2013, Porto, Portugal

Abstract

Increment of the axial region of ablation in a micromachining process is demonstrated when a refractive lens (RL) is replaced by a diffractive lens (DL). The depth of focus of a DL and a RL with the same numerical aperture are compared. For ultrashort pulses, the broadband spectrum of the laser together with the chromatic aberrations associated to the DL made its ablation region greater than the one corresponding to a RL. We measure experimentally the tridimensional ablation region for both types of lenses with 100 fs and 30 fs pulses. This study is expected to be promising to alleviate the mechanical tolerances in femtosecond micromachining with diffractive optical elements (DOEs).

Citation Download Citation

S. Torres-Peiró, J. González Ausejo, O. Mendoza-Yero, G. Mínguez-Vega, and J. Lancis "Tridimensional ablation region in femtosecond laser micromachining with diffractive lenses", Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 87852S (18 November 2013); https://doi.org/10.1117/12.2025698

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE