Tailored excitation sequences for optimized laser-induced modifications in bulk transparent materials exposed to sub-ps irradiation

Alexandre Mermillod-Blondin; Razvan Stoian; Mark L. Boyle; Arkadi Rosenfeld; Igor M. Burakov; Nadezhda Bulgakova; Eric Audouard; Ingolf V. Hertel

doi:10.1117/12.645707

1 March 2006 Tailored excitation sequences for optimized laser-induced modifications in bulk transparent materials exposed to sub-ps irradiation

Alexandre Mermillod-Blondin, Razvan Stoian, Mark L. Boyle, Arkadi Rosenfeld, Igor M. Burakov, Nadezhda Bulgakova, Eric Audouard, Ingolf V. Hertel

Author Affiliations +

Proceedings Volume 6106, Photon Processing in Microelectronics and Photonics V; 61060I (2006) https://doi.org/10.1117/12.645707
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

Tight focusing of ultrashort near infrared laser pulses in the bulk of various transparent materials induces significant modifications of the optical properties by locally changing the material refractive index. Such laser-induced phase objects are of major technological interest, notably for direct writing of embedded optical functions. While extensive studies have been reported on ultrashort pulsed laser induced modifications in several materials, especially with regard to focusing conditions, incubation effects, or the influence of the energy content of the pulse, we emphasize here the role of the temporal design of the excitation sequence. We present phase-contrast microscopy investigations of the resultant morphology and discuss the refractive index topological map induced by different temporal pulse intensity envelopes in various transparent materials. The consequences of temporal profiles generated by a pulse shaping apparatus on the morphology of the interaction zone are illustrated, emphasizing the benefits of the synchronization between the excitation temporal profile and the material response.

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Alexandre Mermillod-Blondin, Razvan Stoian, Mark L. Boyle, Arkadi Rosenfeld, Igor M. Burakov, Nadezhda Bulgakova, Eric Audouard, and Ingolf V. Hertel "Tailored excitation sequences for optimized laser-induced modifications in bulk transparent materials exposed to sub-ps irradiation", Proc. SPIE 6106, Photon Processing in Microelectronics and Photonics V, 61060I (1 March 2006); https://doi.org/10.1117/12.645707

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KEYWORDS

Picosecond phenomena

Microscopy

Refractive index

Pulsed laser operation

Femtosecond phenomena

Optical microscopy

Optical properties

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