Compact wavelength demultiplexing using focusing negative index photonic crystal superprisms
نویسندگان
چکیده
منابع مشابه
Compact wavelength demultiplexing using focusing negative index photonic crystal superprisms.
Here, we demonstrate a compact photonic crystal wavelength demultiplexing device based on a diffraction compensation scheme with two orders of magnitude performance improvement over the conventional superprism structures reported to date. We show that the main problems of the conventional superprism-based wavelength demultiplexing devices can be overcome by combining the superprism effect with ...
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 کاملNegative-index imaging by an index-matched photonic crystal slab
We report negative-index imaging at near infrared wavelengths using a photonic crystal PC with an effective index matched closely to air as the incident medium. A tapered waveguide is used to generate a point-sourcelike object field; and to probe the focusing behavior of the PC, an array of 500 nm wide photonic wire waveguides is placed in the backplane of the PC lens. This represents a samplin...
متن کاملDual wavelength demultiplexing by coupling and decoupling of photonic crystal waveguides.
We demonstrate that the fundamental mode of the two coupled photonic crystal waveguides (PCWs) can be odd parity in a triangular photonic crystal and their dispersion curves do intersect. Thus, the PCWs are decoupled at the crossing point. By employing the decoupling at the crossing-point frequency and ultra short coupling length for another frequency, we designed a dual-wavelength demultiplexe...
متن کاملCompact wavelength de-multiplexer design using slow light regime of photonic crystal waveguides.
We demonstrate the operation of a compact wavelength de-multiplexer using cascaded single-mode photonic crystal waveguides utilizing the slow light regime. By altering the dielectric filling factors of each waveguide segment, we numerically and experimentally show that different frequencies are separated at different locations along the waveguide. In other words, the beams of different waveleng...
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: 2006
ISSN: 1094-4087
DOI: 10.1364/oe.14.002413