The Experts below are selected from a list of 143457 Experts worldwide ranked by ideXlab platform
Susumu Noda - One of the best experts on this subject based on the ideXlab platform.
-
Demonstration of two-dimensional Photonic Crystals based on silicon carbide
Optics Express, 2011Co-Authors: Bong-shik Song, Shota Yamada, Takashi Asano, Susumu NodaAbstract:We demonstrate two-dimensional Photonic Crystals of silicon carbide (SiC)-a wide bandgap semiconductor and one of the hardest materials-at near-infrared wavelengths. Although the refractive index of SiC is lower than that of a conventional semiconductor such as GaAs or Si, we show theoretically that a wide Photonic bandgap, a broadband waveguide, and a high-quality nanocavity comparable to those of previous Photonic Crystals can be obtained in SiC Photonic Crystals. We also develop a process for fabricating SiC-based Photonic Crystals that experimentally show a Photonic bandgap of 200 nm, a waveguide with a 40-nm bandwidth, and a nanocavity with a high quality factor of 4,500. This demonstration should stimulate further development of resilient and stable Photonics at high power and high temperature analogous to SiC power electronics.
-
Recent progress in manipulation of photons by Photonic Crystals
2010 23rd Annual Meeting of the IEEE Photonics Society, 2010Co-Authors: Susumu NodaAbstract:Photonic Crystals, in which the refractive index changes periodically, provide an exciting tool for the manipulation of photons and have made substantial progresses in recent years. In this presentation, I will discuss recent progresses in Photonic-crystal researches including (i) two-dimensional Photonic-crystal cavities and waveguides, (ii) three-dimensional Photonic Crystals, and (iii) two-dimensional Photonic-crystal lasers.
-
New trends in Photonic Crystals
2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009Co-Authors: Susumu NodaAbstract:Photonic Crystals, in which the refractive index changes periodically, provide an exciting tool for the manipulation of photons and have made substantial progresses in recent years. In this presentation, I will discuss two new trends in Photonic Crystals: (i) Dynamic control of Photonic Crystals and (ii) Novel two-dimensional Photonic-crystal lasers, after the overview of the Photonic crystal research [1–9].
-
Recent progress in Photonic Crystals for manipulation of photons
2008 International Nano-Optoelectronics Workshop, 2008Co-Authors: Susumu NodaAbstract:Photonic Crystals, in which the refractive index changes periodically, provide an exciting new tool for the manipulation of photons and have received a keen interest from a variety of fields. In this presentation. I will describe present status of such manipulations of photons by Photonic Crystals.
-
Manipulation of Photons by 2D and 3D Photonic Crystals
OFC NFOEC 2008 - 2008 Conference on Optical Fiber Communication National Fiber Optic Engineers Conference, 2008Co-Authors: Susumu NodaAbstract:The author gives a slide presentation on light photon manipulation by 2D and 3D Photonic Crystals.
Olav Solgaard - One of the best experts on this subject based on the ideXlab platform.
-
Multilayered Monolithic Silicon Photonic Crystals
IEEE Photonics Technology Letters, 2011Co-Authors: Shrestha Basu Mallick, Il Woong Jung, Aaron M. Meisner, J. Provine, Roger T. Howe, Olav SolgaardAbstract:In this letter, we describe the fabrication of double-layered self-aligned silicon Photonic Crystals (PCs) using directional and isotropic etches. The double-layer PCs represent a step towards practical 3-D PCs based on standard Si processing, and they have several advantageous characteristics compared to single-layer PCs, including higher reflectivity and sharper resonances, as demonstrated both experimentally and by finite-difference time-domain (FDTD) simulations.
-
Double-layered monolithic silicon Photonic Crystals
2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science, 2008Co-Authors: Shrestha Basu Mallick, Sanja Hadzialic, Aasmund Sudbo, Olav SolgaardAbstract:Double-layered, self-aligned, silicon Photonic Crystals are fabricated using directional and isotropic etches - a potential step towards 3D PCs. One structure shows sharper resonances compared to corresponding single layer structure. Another shows high, broadband reflectivity.
Takashi Asano - One of the best experts on this subject based on the ideXlab platform.
-
Demonstration of two-dimensional Photonic Crystals based on silicon carbide
Optics Express, 2011Co-Authors: Bong-shik Song, Shota Yamada, Takashi Asano, Susumu NodaAbstract:We demonstrate two-dimensional Photonic Crystals of silicon carbide (SiC)-a wide bandgap semiconductor and one of the hardest materials-at near-infrared wavelengths. Although the refractive index of SiC is lower than that of a conventional semiconductor such as GaAs or Si, we show theoretically that a wide Photonic bandgap, a broadband waveguide, and a high-quality nanocavity comparable to those of previous Photonic Crystals can be obtained in SiC Photonic Crystals. We also develop a process for fabricating SiC-based Photonic Crystals that experimentally show a Photonic bandgap of 200 nm, a waveguide with a 40-nm bandwidth, and a nanocavity with a high quality factor of 4,500. This demonstration should stimulate further development of resilient and stable Photonics at high power and high temperature analogous to SiC power electronics.
-
spontaneous emission control by Photonic Crystals and nanocavities
Nature Photonics, 2007Co-Authors: Susumu Noda, Masayuki Fujita, Takashi AsanoAbstract:We describe the recent experimental progress in the control of spontaneous emission by manipulating optical modes with Photonic Crystals. It has been clearly demonstrated that the spontaneous emission from light emitters embedded in Photonic Crystals can be suppressed by the so-called Photonic bandgap, whereas the emission efficiency in the direction where optical modes exist can be enhanced. Also, when an artificial defect is introduced into the Photonic crystal, a Photonic nanocavity is produced that can interact with light emitters. Cavity quality factors, or Q factors, of up to 2 million have been realized while maintaining very small mode volumes, and both spontaneous-emission modification (the Purcell effect) and strong-coupling phenomena have been demonstrated. The use of Photonic Crystals and nanocavities to manipulate spontaneous emission will contribute to the evolution of a variety of applications, including illumination, display, optical communication, solar energy and even quantum-information systems.
-
Novel nanostructures for light: Photonic Crystals
2003 Third IEEE Conference on Nanotechnology 2003. IEEE-NANO 2003., 2003Co-Authors: Susumu Noda, Takashi Asano, Masahiro ImadaAbstract:Recent progresses in Photonic Crystals, which are novel nanostructures for light, are explained. Spontaneous emission control by 3D Photonic Crystals, novel 2D Photonic crystal laser, and ultrasmall Photonic device based on in-plane hetero Photonic Crystals are explained.
-
Semiconductor Photonic Crystals and devices
Conference Proceedings. 14th Indium Phosphide and Related Materials Conference (Cat. No.02CH37307), 2002Co-Authors: Susumu Noda, Takashi Asano, Masahiro ImadaAbstract:Recent progresses in Photonic Crystals including both three-dimensional (3D) and two-dimensional (2D) Crystals are reviewed. On 3D Photonic Crystals, we at first explain our approach to create full 3D bandgap Crystals at near-infrared wavelengths, and then the introduction of the light-emitters into 3D Crystals. On 2D Crystals, two types of devices are explained. One is channel-add-drop-filtering devices, which utilize line- and single-defects introduced in 2D Photonic crystal slab structure. The other is the 2D Photonic crystal laser, which utilizes multi-directional distributed feedback effects.
Shrestha Basu Mallick - One of the best experts on this subject based on the ideXlab platform.
-
Multilayered Monolithic Silicon Photonic Crystals
IEEE Photonics Technology Letters, 2011Co-Authors: Shrestha Basu Mallick, Il Woong Jung, Aaron M. Meisner, J. Provine, Roger T. Howe, Olav SolgaardAbstract:In this letter, we describe the fabrication of double-layered self-aligned silicon Photonic Crystals (PCs) using directional and isotropic etches. The double-layer PCs represent a step towards practical 3-D PCs based on standard Si processing, and they have several advantageous characteristics compared to single-layer PCs, including higher reflectivity and sharper resonances, as demonstrated both experimentally and by finite-difference time-domain (FDTD) simulations.
-
Double-layered monolithic silicon Photonic Crystals
2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science, 2008Co-Authors: Shrestha Basu Mallick, Sanja Hadzialic, Aasmund Sudbo, Olav SolgaardAbstract:Double-layered, self-aligned, silicon Photonic Crystals are fabricated using directional and isotropic etches - a potential step towards 3D PCs. One structure shows sharper resonances compared to corresponding single layer structure. Another shows high, broadband reflectivity.
Tal Ellenbogen - One of the best experts on this subject based on the ideXlab platform.
-
controlling light with metamaterial based nonlinear Photonic Crystals
Nature Photonics, 2015Co-Authors: Nadav Segal, Shay Kerenzur, Netta Hendler, Tal EllenbogenAbstract:Nonlinearity engineering is demonstrated by the construction of metamaterial-based Photonic Crystals. Nonlinear emission and diffraction are controlled and intense focusing is reported.
