Abstract We present a new type of optical filter with an ultra-narrow bandwidth and a wide field-of-view (FOV). This kind of optical filter consists of one-dimensional photonic crystal (PC) incorporating an anomalous-dispersion-material (ADM) with, for instance, an anomalous dispersion of $6$P$_{3/2}\leftarrow6$S$_{1/2}$ hyperfine structure transition of a caesium atom. The transmission spectra of optical filters are calculated by using the transfer-matrix method. The simulation results show that the designed optical filter has a bandwidth narrower than 0.33GHz and a wide FOV of $\pm30^{\circ}$ as well. The response of transmission spectrum to an external magnetic field is also investigated.
Received: 18 November 2004
Revised: 18 July 2005
Accepted manuscript online:
Fund: Project supported by the National Basic Research Program of China (Grant No 001CB61040) and the Natural Science Foundation of Beijing, China (Grant No1032003).
Cite this article:
Liu Jiang-Tao (刘江涛), Zhou Yun-Song (周云松), Wang Fu-He (王福合), Gu Ben-Yuan (顾本源) Ultra-narrow bandwidth optical filters consisting of one-dimensional photonic crystals with anomalous dispersion materials 2005 Chinese Physics 14 2474
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