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Three dimensional photonic structures specifically, woodpile photonic crystals, have great potential for manipulating light propagation such as localization and filtering. Efficient harvesting of the energy of the incident photons require spatially localized waves interacting strongly with the absorbing material. Meanwhile, one can also utilize similar concept in order to implement filtering of light...
This paper presents an overview of our work on the theory, design, fabrication, and integration of micro/nano-scale optical devices as applicable for all-optical generic and application-specific VLSI photonic integration. The micro/nano-optical devices are designed to perform the functions of collecting, storing, transporting, processing, switching, routing, and distributing optical signals on chips...
This paper presents an overview of our work on the design, fabrication, and integration of micro/nano-scale optical devices as applicable for all-optical generic and application-specific VLSI photonic integration. The micro/nano-optical devices are designed to perform the functions of collecting, storing, transporting, processing, switching, routing, and distributing optical signals on chips. The...
In this talk we will discuss issues related to technology for dense photonic integration based on silicon platform, and review two alternatives to achieve this goal within the diffraction limit; photonic nanowires and photonic crystal waveguides. We will also present examples of our demonstrators to illustrate the feasibility of photonic wires for device miniaturization and benefits offered by photonic...
The designment of Si-based 2D photonic crystal taper is presented. The software Rsoft incorporating finite-difference time-domain (FDTD) technique was used to simulate light propagation through this new structure. Plenty of methods have been tried to improve transmission coefficient and solve the problem of mode mismatch in photonic crystal devices. A taper with high transmission coefficient has been...
The dominant mode of a photonic crystal (PC) waveguide is computed by an eigenvalue formulation of the flexible local approximation method (FLAME). The computed mode is then incorporated into a new excitation-absorption boundary condition for use in predicting scattering in multi-port PC devices. Reflection and transmission coefficients of a PC bend are calculated by the new method; agreement with...
In this paper, the investigation of light propagating inside such a structure is usually limited by both the diffraction limit and the absence of radiating light. We have solved this by investigating a photonic crystal waveguide with a phase-sensitive time-resolved near-field scanning microscope. Photonic crystals are promising structures for controlling light, because the light has to obey Bloch's...
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