Toward photonic crystal based spatial filters with wide angle ranges of total transmission
Date
2009
Editor(s)
Advisor
Supervisor
Co-Advisor
Co-Supervisor
Instructor
Source Title
Applied Physics Letters
Print ISSN
0003-6951
Electronic ISSN
1077-3118
Publisher
AIP Publishing LLC
Volume
94
Issue
18
Pages
181101-1 - 181101-3
Language
English
Type
Journal Title
Journal ISSN
Volume Title
Series
Abstract
Spatial filters with steep switching between wide ranges of total transmission and total reflection can be obtained by using two-dimensional dielectric photonic crystals, which are a few wavelengths thick. The guidelines for engineering bandpass and bandstop filters are given. The flatness of isofrequency contours that are localized around a periphery point of the first Brillouin zone is a necessary but insufficient condition for the existence of wide angle ranges of total transmission at intermediate and large angles of incidence. Such ranges that are wider than 20° are demonstrated. © 2009 American Institute of Physics.