Title :
Design of a tunable ultraviolet filter using metallodielectric photonic crystal
Author :
Banerjee, Adrish ; Malaviya, Usha
Author_Institution :
Dept. of Electron. & Commun. Eng., Amity Univ., Lucknow
Abstract :
A theory to design a tunable ultraviolet filter using a 1-D metallodielectric photonic crystal composed of alternate layers of MgF2 and Co is proposed. It is possible to get different ranges of ultraviolet spectrum transmitted through the structure by varying the angle of incidence light. Due to high refractive index contrast in the present structure, regions of transmission separated by well-defined regions of high reflectivity (the photonic band gaps) are obtained with only 12 periods. The use of small number of periods in the present filter structure has advantages of small filter size, low weight and cost.
Keywords :
cobalt; dielectric materials; magnesium compounds; optical design techniques; optical filters; photonic band gap; photonic crystals; reflectivity; refractive index; 1-D metallodielectric photonic crystal; MgF2-Co; photonic band gap; reflectivity; refractive index contrast; tunable ultraviolet filter; ulltraviolet spectrum; Costs; Dielectrics; Frequency; Nonhomogeneous media; Optical arrays; Optical filters; Photonic band gap; Photonic crystals; Plasma applications; Refractive index; dielectrics; metals; optical filters; photonic band gap;
Conference_Titel :
Applied Electromagnetics Conference, 2007. AEMC 2007. IEEE
Conference_Location :
Kolkata
Print_ISBN :
978-1-4244-1863-3
Electronic_ISBN :
978-1-4244-1864-0
DOI :
10.1109/AEMC.2007.4638034
