Wavelength demultiplexer consisting of Photonic crystal superprism and superlens
نویسندگان
چکیده
منابع مشابه
Wavelength demultiplexer consisting of Photonic crystal superprism and superlens.
We propose a novel compact wavelength demultiplexer, for which two functions arising from the anomalous dispersion characteristics of photonic crystals are combined. One is the superprism that exhibits large angular dispersion and expansion of light beam. The other is the superlens used for the focusing of the expanded light beam. Theoretically, a high resolution of 0.4 nm will be realized in t...
متن کاملCompact Wavelength Demultiplexer via Photonic Crystal Multimode Resonators
Wavelength demultiplexers based on photonic crystal resonators are attractive, since they may be realized in very small sizes. However, existing designs have a limitation on the size, since they all require one resonator for each wavelength and these resonators must be separated. As a possible approach to reduce the size further, we show that a single multimode resonator may be used to separate...
متن کاملStructural Study of Photonic Crystal as Superprism
The superprism behavior of Photonic Crystal (PC) due to different geometrical shapes, e.g., circular, hexagonal and square of air holes arranged in triangular lattice has been studied. Structures rely on phase velocity sensitivity in a 2D photonic crystal slab to observe and compare the angular magnification in the uniform medium outside the PC. The observation of superprism behavior has been m...
متن کاملThin-film wavelength demultiplexer based on photonic crystal and group velocity effects
We experimentally observe the “superprism effect” in a periodic thin-film structure acting as a one-dimensional photonic crystal. The design of non-periodic structures exhibiting a linear shift with wavelength in the EDFA C-band is discussed. 2002 Optical Society of America OCIS codes: (260.2030) Dispersion; (060.4230) Multiplexing; (230.4170) Multilayers WDM systems create a strong need for c...
متن کاملPreconditioned superprism-based photonic crystal demultiplexers: analysis and design.
We present the analysis and design of a new type of photonic crystal (PC) demultiplexers (i.e., preconditioned demultiplexer), in which the simultaneous existence of the superprism effect and the negative effective index for diffraction results in a compact structure by canceling the second-order spectral phase to avoid beam broadening inside the PC. This approach considerably relaxes the requi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2005
ISSN: 1094-4087
DOI: 10.1364/opex.13.010768