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ICOP & ICPET 2017, 23 - : 893-896 Back to browse issues page
Design and fabrication of all-dielectric narrow band-pass interference filter using optical thickness monitoring system
Javad Shahmohammadi * 1, Mehdi Mardiha 1, Hosein Zabolian 1, Alireza Firoozifar 1
1- isfahan university
Abstract:   (858 Views)

In this paper design and fabrication of narrow band-pass interference filter based on Fabry-Perot method with wide rejection zone at 1071 nm wavelength has been reported. Deposition was performed in vacuum chamber with pressure order of 10-6 mbar and using electron gun. Optical monitoring system wass used to monitor the thickness of layers. On the other side of substrate a long-wave pass interference filter was designed and coated in order to making a part of rejection zone. Transmission spectra of coatings were measured using a dual-beam spectrophotometer. Finally a band-pass filter with 95 percent transmission peak and 22 nm in FWHM, was fabricated. Final filter after deposition passed all of required environmental tests according to related standards.

Keywords: narrow band-pass filter, optical thickness monitoring, physical vapor deposition
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Type of Study: Research | Subject: Special
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Shahmohammadi J, mardiha M, Zabolian H, firoozifar A. Design and fabrication of all-dielectric narrow band-pass interference filter using optical thickness monitoring system. ICOP & ICPET. 2017; 23 :893-896
URL: http://opsi.ir/article-1-1336-en.html


Volume 23 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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