Optical waveguide fabrication inside transparent materials by use of plasma channeling induced by tailored femtosecond laser

Autor:	Minoru Obara, Kosuke Ohta, Hiroshi Sekita, Masanao Kamata
Rok vydání:	2003
Předmět:	Fabrication Materials science business.industry Physics::Optics Plasma Laser Condensed Matter::Disordered Systems and Neural Networks Numerical aperture law.invention Optics law Femtosecond Photonics business Refractive index Pulse-width modulation
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.479241
Popis:	With a loosely focused femtosecond laser, refractive index change is induced in silica glass without any scanning process. By decrease numerical aperture of the incident laser, the induction of irregular structure can be avoided such as clacks and spatial splitting of the induced refractive index change region. We demonstrate controlling of the refractive index change by optimizing the numerical aperture and input energy and input pulsewidth and laser shot number. A new method of fabrication of photonic devices in silica glass is proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::25d23841b4def81e9f63c0d93c5264bc https://doi.org/10.1117/12.479241 Zobrazit plný text záznamu