Energy-lose induced unidirectional light propagation in porous alumina photonic crystal

2015 ◽  
Vol 528 (3-4) ◽  
pp. 288-294 ◽  
Author(s):  
Guo Liang Shang ◽  
Yao Zhang ◽  
Guang Tao Fei ◽  
Yan Su ◽  
Li De Zhang
Keyword(s):  
Photonic Crystal ◽  
Light Propagation ◽  
Porous Alumina

scholarly journals Probing molecular absorption under slow-light propagation using a photonic crystal waveguide

2012 ◽  
Vol 37 (23) ◽  
pp. 4934 ◽  
Author(s):  
Isabelle Dicaire ◽  
Alfredo De Rossi ◽  
Sylvain Combrié ◽  
Luc Thévenaz
Keyword(s):  
Photonic Crystal ◽  
Light Propagation ◽  
Slow Light ◽  
Photonic Crystal Waveguide ◽  
Molecular Absorption

scholarly journals Opto-Mechanical Photonic Crystal Cavities for Sensing Application

2020 ◽  
Vol 10 (20) ◽  
pp. 7080
Author(s):  
Ji Xia ◽  
Qifeng Qiao ◽  
Guangcan Zhou ◽  
Fook Siong Chau ◽  
Guangya Zhou
Keyword(s):  
Photonic Crystal ◽  
Light Propagation ◽  
Mass Force ◽  
Mechanical Interaction ◽  
Quality Factors ◽  
Photonic Crystal Cavities ◽  
New Class ◽  
Experimental Systems ◽  
Sensing Applications ◽  
On Chip

A new class of hybrid systems that couple optical and mechanical nanoscale devices is under development. According to their interaction concepts, two groups of opto-mechanical systems are summarized as mechanically tunable and radiation pressure-driven optical resonators. On account of their high-quality factors and small mode volumes as well as good on-chip integrability with waveguides/circuits, photonic crystal (PhC) cavities have attracted great attention in sensing applications. Benefitting from the opto-mechanical interaction, a PhC cavity integrated opto-mechanical system provides an attractive platform for ultrasensitive sensors to detect displacement, mass, force, and acceleration. In this review, we introduce basic physical concepts of opto-mechanical PhC system and describe typical experimental systems for sensing applications. Opto-mechanical interaction-based PhC cavities offer unprecedented opportunities to develop lab-on-a-chip devices and witness a promising prospect to further manipulate light propagation in the nanophotonics.

Near-field optical microscopy of light propagation through photonic crystal waveguide tapers

2005 ◽  
Author(s):  
R. Wuest ◽  
Benjamin C. Buchler ◽  
Rik Harbers ◽  
Patric Strasser ◽  
K. Rauscher ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Microscopy ◽  
Light Propagation ◽  
Near Field ◽  
Photonic Crystal Waveguide

scholarly journals Photonic crystal for graphene plasmons

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
L. Xiong ◽  
C. Forsythe ◽  
M. Jung ◽  
A. S. McLeod ◽  
S. S. Sunku ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Light Propagation ◽  
Oxide Semiconductor ◽  
Graphene Monolayer ◽  
Light Manipulation ◽  
Integrated Optical ◽  
On Chip ◽  
Nano Imaging ◽  
Two Dimensional Photonic Crystal

Abstract Photonic crystals are commonly implemented in media with periodically varying optical properties. Photonic crystals enable exquisite control of light propagation in integrated optical circuits, and also emulate advanced physical concepts. However, common photonic crystals are unfit for in-operando on/off controls. We overcome this limitation and demonstrate a broadly tunable two-dimensional photonic crystal for surface plasmon polaritons. Our platform consists of a continuous graphene monolayer integrated in a back-gated platform with nano-structured gate insulators. Infrared nano-imaging reveals the formation of a photonic bandgap and strong modulation of the local plasmonic density of states that can be turned on/off or gradually tuned by the applied gate voltage. We also implement an artificial domain wall which supports highly confined one-dimensional plasmonic modes. Our electrostatically-tunable photonic crystals are derived from standard metal oxide semiconductor field effect transistor technology and pave a way for practical on-chip light manipulation.

Electrochemically Prepared Pore Arrays for Photonic-Crystal Applications

MRS Bulletin ◽  
2001 ◽  
Vol 26 (8) ◽  
pp. 623-626 ◽  
Author(s):  
R.B. Wehrspohn ◽  
J. Schilling
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Electromagnetic Waves ◽  
Porous Alumina ◽  
Dielectric Materials ◽  
Dielectric Medium ◽  
Geometrical Parameters ◽  
Quarter Wavelength ◽  
Physically Based ◽  
1D Photonic Crystal

In the last few years, photonic crystals have gained considerable interest due to their ability to “mold the flow of light.” Photonic crystals are physically based on Bragg reflections of electromagnetic waves. In simple terms, a one-dimensional (1D) photonic crystal is a periodic stack of thin dielectric films with two different refractive indices, n1 and n2. The two important geometrical parameters determining the wavelength of the photonic bandgap are the lattice constant, a = d1(n1) + d2(n2), and the ratio of d1 to a (where d1 is the thickness of the layer with refractive index n1, and d2 is the thickness of layer n2). For a simple quarter-wavelength stack, the center wavelength λ of the 1D photonic crystal would be simply λ = 2n1d1 + 2n2d2. In the case of 2D photonic crystals, the concept is extended to either airholes in a dielectric medium or dielectric rods in air. Therefore, ordered porous dielectric materials like porous silicon or porous alumina are intrinsically 2D photonic crystals.

Control of light propagation and localization in a photonic crystal slab by using a micromechanical actuator

2004 ◽  
Author(s):  
Satoshi Iwamoto ◽  
Hirohito Yamada ◽  
Akiko Gomyo ◽  
Masayuki Shirane ◽  
Yasuhiko Arakawa
Keyword(s):  
Photonic Crystal ◽  
Light Propagation ◽  
Photonic Crystal Slab
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