Stepwise graded refractive-index profiles for design of a narrow-bandpass filter

Authors
Wang, XR Masumoto, H Someno, Y Chen, LD Hirai, TS
Citation
Xr. Wang et al., Stepwise graded refractive-index profiles for design of a narrow-bandpass filter, APPL OPTICS, 40(22), 2001, pp. 3746-3752
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
APPLIED OPTICS
ISSN journal
00036935 → ACNP
Volume
40
Issue
22
Year of publication
2001
Pages
3746 - 3752
Database
ISI
SICI code
0003-6935(20010801)40:22<3746:SGRPFD>2.0.ZU;2-S
Abstract
A combination of stepwise graded refractive-index profiles and a cavity str ucture is used for designing narrow-bandpass filters of TiO2/SiO2 multilaye r films upon BK7 glass substrates. Symmetrical profiles of stepwise graded refractive indices result in high transmittance of passbands for the design ed filters. The bandwidth of the narrow-bandpass filter is controlled by ad justment of parameters such as the thickness and the number of layers in th e multilayer stack. This design is proposed as anew and simple method for c oating synthesis of optical filters. (C) 2001 Optical Society of America.