Femtosecond-laser induced formation of grating structures in planar polymer substrates

Autor:	K Midorikawa, S. Metev, Ya Cheng, Carsten Wochnowski, K. Meteva, K Sugioka
Rok vydání:	2005
Předmět:	Materials science Holographic grating business.industry Substrate (electronics) Grating Diffraction efficiency Laser Atomic and Molecular Physics and Optics law.invention Optics law visual_art Femtosecond visual_art.visual_art_medium Polycarbonate business Polyimide
Zdroj:	Journal of Optics A: Pure and Applied Optics. 7:493-501
ISSN:	1741-3567 1464-4258
DOI:	10.1088/1464-4258/7/9/008
Popis:	Grating structures are fabricated in polymer substrates by femtosecond- (fs-) IR-laser radiation. Several sorts of polymer are employed as polymeric basic material for the grating manufacture: polymethylmethacrylate (PMMA), fluorinated PMMA, poly-N-methyl methacrylimide (PMMI), polycarbonate (PC), polyimide (PI) and polysiloxane. Surface and volume gratings are fabricated by positioning the focus of the fs-laser beam directly on the surface or inside the volume of the polymeric substrate, so by the right choice of the irradiation parameters the irradiated zone of the substrate is ablated, modified or carbonized. The sample is moved according to a scanning algorithm in order to generate the grating structure. The diffraction efficiency of the grating samples is measured by a HeNe laser. Some proposals are given for the mechanism of the grating generation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e6ceb156f0be834c71bd63d1f56c273f https://doi.org/10.1088/1464-4258/7/9/008 Zobrazit plný text záznamu