photonic crystal – TechConnect Briefs

Wafer-scale photonic and plasmonic crystal sensors

George M.C., Liu J.-N., Farhang A., Williamson B., Black M., Wangensteen T., Fraser J., Petrova R., Cunningham B.T., Moxtek, US

This presentation will review recent results in 200 mm diameter wafer-scale fabrication, metrology, and optical modeling of various photonic and plasmonic crystal sensors, including 1D photonic crystals based on leaky-waveguide mode resonance, as well as [...]

230 fold fluorescence enhancement by 3D Rhodamine B coated polystyrene photonic crystals

Eftekhari E., Li Q., Li X., Cole I.S., Li Q., Li X., Griffith University, AU

We report a 230-fold fluorescence enhancement with fluorescent polystyrene based three-dimensional (3D) colloidal photonic crystals (F-CPhCs) that can be readily fabricated over large areas. A simple and reproducible method was developed to synthesise novel fluorescent [...]

High Temperature Nanostructures for Thermophotovoltaics

Lee H.J., Smyth K., Kim S-G, Massachusetts Institute of Technology, US

A fundamental challenge in solar-thermal-electrical energy conversion is the thermal stability of nano-engineered materials and devices at high operational temperatures. Selective tungsten emitters based on 2-D photonic crystals have been found effective in controlling the [...]

High Temperature Nanostructures for Thermophotovoltaics

Lee H.J., Smyth K., Kim S-G, Massachusetts Institute of Technology, US

A fundamental challenge in solar-thermal-electrical energy conversion is the thermal stability of nano-engineered materials and devices at high operational temperatures. Selective tungsten emitters based on 2-D photonic crystals have been found effective in controlling the [...]

Patterning of Periodic Structures Using Continuously Moving Stage

Klingfus J., Sanabia J.E., Burcham K.E., Kahl M., Raith USA, US

A unique EBL writing technique is presented which is ideally suited to patterns of a periodic nature such as gratings, holograms, photonic crystals, sieves, etc. In contrast to classic step-and-write EBL strategies, this technique writes [...]

Simulation and Experiment on 2PC Transmitted Diffraction Grating for GaN LEDs

Jin X., California Polytechnic State University, US

To test 2PC structures by experiment, we affixed 2PC structures onto a hemicylinder of polydimethylsiloxane (PDMS) and placed the sample on a rotating stage with a green laser beam (λ=532nm) incident on the grating structure. [...]

Fabrication of Micro Photonic Crystals for Handling of Terahertz Electromagnetic Waves

Kirihara S., Sano D., Niki T., Ohta N., Takinami Y., Osaka University, JP

Electromagnetic waves in terahertz ranges are possible to harmonize with molecule vibrations of various saccharides or proteins, and expected to control the biological material syntheses through the frequency excitements. In this investigation, metals and ceramics [...]

Enhancement of Silicon Photon Emission with Nanostructure Array

Li J.L., Kuan C.H., Peng Y.H., Lo H-C, Chen L-C, National Taiwan University, TW

Initiated by the high photon-emission nature of the porous silicon materials and the light transmission enhancement characteristics of the photonic crystals, the research of silicon Raman scattering of array nanostructures built by the electron beam [...]

Large Scale FDTD Simulation for Microoptics and Metamaterial Investigations – Current Possibilities and Verification Benchmarks

Hieke A., Tramel R., CFD Research Corporation, US

The study of microsystems containing photonic crystals (PC) and meta-materials are rapidly growing fields of research. Finite-Difference Time-Domain (FDTD) full wave electromagnetic solvers are now increasingly used to investigate and design such systems. However, in [...]