The term photonic crystals appears because of the analogy between electron waves in crystals and the light waves in artificial periodic dielectric structures. During the recent years the investigation of one-, two-and three-dimensional periodic structures has attracted a widespread attention of the world optics community because of great potentiality of such structures in advanced applied optical fields. The interest in periodic structures has been stimulated by the fast development of semiconductor technology that now allows the fabrication of artificial structures, whose period is comparable with the wavelength of light in the visible and infrared ranges.

http://ieeexplore.ieee.org/iel5/6354/16969/00781867.pdf

Photonic crystals

13. 벼잎선충의 약제처리 방법별 방제 효과

In order to enable optical systems to operate with a high degree of compactness and reliability it is necessary to combine large number of optical functions in small monolithic structures. A development, somewhat reminiscent of that that took place in Integrated Electronics, is now beginning to take place in optics. The initial challenge in this emerging field, known appropriately as "Integrated Optics", is to demonstrate the possibility of performing basic optical functions such as light generation, coupling, modulation, and guiding in Integrated Optical configurations. The talk will review the main theoretical and experimental developments to date in Integrated Optics. Specific topics to be discussed include: Material considerations, guiding mechanisms, modulation, coupling and mode losses. The fabrication and applications of periodic thin film structures will be discussed.

Integrated optics

Preface 1. Wave Theory of Optical Waveguides 2. Planar Optical Waveguides 3. Optical Fibers 4. Couple Mode Theory 5. Nonlinear Optical Effects in Optical Fibers 6. Finite Element Method 7. Beam Propagation Method 8. Staircase Concatention Method 9. Planar Lightwave Circuits 10. Theorems and Formulas Appendix

Fundamentals of optical waveguides

Integrated OpticsIntegrated Optics and Optical SwitchingIntegrated Optics: Theory and TechnologyIntroduction to Integrated OpticsElements of Photonics, Volume IIEncyclopedic Handbook of Integrated OpticsOptical Fiber Communication Conference and Sixth International Conference on Integrated Optics and Optical Fiber CommunicationIntegrated Optical Circuits and ComponentsIntegrated OpticsAdvances in Integrated OpticsFundamentals of Fibre Optics in Telecommunication and Sensor SystemsIntegrated OpticsIntegrated Optics, Microstructures, and SensorsMulti-Photon Quantum Information Science and Technology in Integrated OpticsIntegrated Optics, Microstructures, and SensorsIntegrated PhotonicsOptics and LasersA Consideration of Possibilities and Difficulties in Passive Circuits in Integrated OpticsSemiconductor Integrated Optics for Switching LightIntegrated OpticsIntegrated OpticsAdvanced Materials for Integrated Optical WaveguidesIntroduction to Semiconductor Integrated OpticsCommercial Integrated OpticsIntegrated OpticsIntegrated Optics and MicrostructuresElectromagnetic Principles of Integrated OpticsIntegrated Optics and Micro-Optics with PolymersIntroduction to Integrated OpticsIntegrated Optics SuppliersIntegrated Optics: Theory and TechnologyDiffractive Optics and Optical MicrosystemsIntegrated Optics and OptoelectronicsFiber and Integrated OpticsEncyclopedic Handbook of Integrated OpticsFirst International Conference on Integrated Optical Circuit EngineeringIntegrated OpticsIon Exchange in Single Crystals for Integrated Optics and OptoelectronicsOptics and LasersIntegrated Optics: Devices, Materials, and Technologies

http://ieeexplore.ieee.org/iel5/3/23092/01072971.pdf

We propose a new power-splitting scheme in two-dimensional photonic crystals that can be applicable to photonic integrated circuits. The proposed power-splitting mechanism is analogous to that of conventional three-waveguide directional couplers, utilizing coupling between guided modes supported by line-defect waveguides. Through the analysis of dispersion curve and field patterns of modes, the position in propagation direction, where an input field is split into a two-folded image, is determined by simple mode analysis. Based on the calculated position, a photonic crystal power-splitter is designed and verified by finite-difference time-domain computation

Photonic crystal power-splitter based on directional coupling.

We show that the self-imaging principle still holds true in multimode photonic crystal (PhC) line-defect waveguides just as it does in conventional multi-mode waveguides. To observe the images reproduced by this self-imaging phenomenon, the finite-difference time-domain computation is performed on a multi-mode PhC line-defect waveguide that supports five guided modes. From the computed result, the reproduced images are identified and their positions along the propagation axis are theoretically described by self-imaging conditions which are derived from guided mode propagation analysis. We report a good agreement between the computational simulation and the theoretical description. As a possible application of our work, a photonic crystal 1-to-2 wavelength demultiplexer is designed and its performance is numerically verified. This approach can be extended to novel designs of PhC devices.

Self-imaging phenomena in multi-mode photonic crystal line-defect waveguides: application to wavelength de-multiplexing

Enhanced luminescence of GaN-based light-emitting diode with a localized surface plasmon resonance

Fabrication and integration of VLSI micro/nano-photonic circuit board

The enhanced electroluminescence of GaN-based light-emitting diodes (LEDs) with noble metallic nanoparticles (MNPs) is demonstrated. The sample with well-designed Ag MNPs has shown the best performance enhancement of 126% in electroluminescent intensity compared with a conventional LED sample, even though the MNPs are placed at least 200 nm away from the quantum-well active layer. The MNPs provide enhanced photon scattering and coupling between localized surface plasmon resonance (LSPR) modes and photon modes internally trapped in a device. To investigate this effect, the peculiarities of the LSPR and the corresponding structural properties of the MNPs are discussed through the effective medium approach.

Seung-Gol Lee

Papers

Photonic crystal power-splitter based on directional coupling.

Self-imaging phenomena in multi-mode photonic crystal line-defect waveguides: application to wavelength de-multiplexing

Enhanced luminescence of GaN-based light-emitting diode with a localized surface plasmon resonance

Fabrication and integration of VLSI micro/nano-photonic circuit board

Enhancement of electroluminescence in GaN-based light-emitting diodes by metallic nanoparticles