1 7 O ct 2 00 6 Reflectionless evanescent - wave amplification by two dielectric planar waveguides
نویسنده
چکیده
Utilizing the underlying physics of evanescent-wave amplification by a negative-refractive-index slab, it is shown that evanescent waves with specific spatial frequencies can also be amplified without any reflection simply by two dielectric planar waveguides. The simple configuration allows one to take advantage of the high resolution limit of a high-refractive-index material without contact with the object. c © 2008 Optical Society of America
منابع مشابه
J ul 2 00 6 Reflectionless evanescent wave amplification by two dielectric planar waveguides
Utilizing the underlying physics of evanescent wave amplification by a negative-refractive-index slab, it is shown that evanescent waves with specific spatial frequencies can also be amplified without any reflection simply by two dielectric planar waveguides. The simple configuration allows one to take advantage of the high resolution limit of a high-refractive-index material without contact wi...
متن کاملReflectionless evanescent-wave amplification by two dielectric planar waveguides: erratum.
In a previous Letter [Tsang and Psaltis, Opt. Lett.31, 2741 (2006)], we assert that the total reflection coefficient of two dielectric slabs goes to zero in the limit of single-waveguide resonance. A more careful derivation shows that this is not the case. The correct condition in which reflectionless evanescent-wave amplification can be achieved by two dielectric planar waveguides is derived i...
متن کاملReflectionless evanescent-wave amplification by two dielectric planar waveguides.
Utilizing the underlying physics of evanescent-wave amplification by a negative-refractive-index slab, it is shown that evanescent waves with specific spatial frequencies can also be amplified without any reflection simply by two dielectric planar waveguides. The simple configuration allows one to take advantage of the high resolution limit of a high-refractive-index material without contact wi...
متن کاملHCMT models of optical microring-resonator circuits
1 Ringresonator modelling Optical microresonator circuits [1, 2, 3] are considered, consisting of a number of not necessarily identical circular cavities and straight waveguides, with evanescent wave interaction between these elements. A simple configuration with a single cavity and two straight bus waveguides serves as an example to explain the frequency-domain Hybrid analytical/numerical Coup...
متن کاملEvanescent Wave Fibre Optic Sensors: Theory
This chapter gives a theoretical picturization of the evanescent field at the core-cladding interface of dielectric waveguides and deals with the theoretical modelling ofevanescent wave based fibre optic sensors. We also discuss some crucial parameters which are very much essential in the design of a variety of intensity modulated evanescent wave fibre optic sensors.
متن کامل