Femtosecond laser machining of glass using single and few pulses

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We describe a study of single/few pulse machining of glass with 150fs pulses at 800nm (Ti:sapphire) and present results demonstrating in a quantitative way the dependence of the machining quality on the focal position and the pulse energy of the laser beam. We report experimental results on how sub-diffraction limited structures can be created. A theoretical calculation of the ablation threshold of glass is made from our experimental results, found to be 5.55J/cm2. Results are also presented that illustrate the dependence of the machining quality on the pulse length used. A technique for optimising the focal position at energies below the machining threshold is detailed and we will also present results of a related study investigating the self focusing of femtosecond beams in air.

Original languageEnglish
Title of host publicationICALEO 2004 - 23rd International Congress on Applications of Laser and Electro-Optics, Congress Proceedings
Publication statusPublished - 2004
EventICALEO 2004 - 23rd International Congress on Applications of Laser and Electro-Optics - San Francisco, CA, United States
Duration: 4 Oct 20047 Oct 2004

Conference

ConferenceICALEO 2004 - 23rd International Congress on Applications of Laser and Electro-Optics
CountryUnited States
CitySan Francisco, CA
Period4/10/047/10/04

Fingerprint Dive into the research topics of 'Femtosecond laser machining of glass using single and few pulses'. Together they form a unique fingerprint.

Cite this