Band filters: two-material technology versus rugate.

We demonstrate theoretically and experimentally a band filter with two reflection and broadband transmission ranges, which was obtained with standard two-material technology. The fabricated filter has transmission and reflectivity characteristics better than those achievable with rugate technology.

[1]  J A Dobrowolski,et al.  Optical thin film synthesis program based on the use of Fourier transforms. , 1978, Applied optics.

[2]  Steffen Wilbrandt,et al.  New optimization algorithm for the synthesis of rugate optical coatings. , 2006, Applied optics.

[3]  Alexander V. Tikhonravov,et al.  1.5-octave chirped mirror for pulse compression down to sub-3 fs , 2007 .

[4]  Detlev Ristau,et al.  Application of optical broadband monitoring to quasi-rugate filters by ion-beam sputtering. , 2006, Applied optics.

[5]  Cheng-Chung Lee,et al.  Rugate filter made with composite thin films by ion-beam sputtering. , 2006, Applied Optics.

[6]  Michael K. Trubetskov,et al.  Design of multilayers featuring inhomogenous coating properties , 1996, Optical Systems Design.

[7]  A. Tikhonravov,et al.  Some theoretical aspects of thin-film optics and their applications. , 1993, Applied optics.

[8]  W. Southwell.  Using apodization functions to reduce sidelobes in rugate filters. , 1989, Applied optics.

[9]  W H Southwell,et al.  Rugate filter sidelobe suppression using quintic and rugated quintic matching layers. , 1989, Applied optics.

[10]  Ferenc Krausz,et al.  Synthesis and manufacturing the mirrors for ultrafast optics , 2005, SPIE Optical Systems Design.

[11]  Alexander V. Tikhonravov,et al.  Mathematical aspects of the synthesis of inhomogeneous coatings , 1993, Other Conferences.

[12]  Tatiana V. Amotchkina,et al.  Key role of the coating total optical thickness in solving design problems , 2004, SPIE Optical Systems Design.

[13]  B. Bovard,et al.  Rugate filter design: the modified Fourier transform technique. , 1990, Applied optics.