Low index contrast heterostructure photonic crystal cavities with high quality factors and vertical radiation coupling

2018 ◽  
Vol 112 (14) ◽  
pp. 141105 ◽  
Author(s):  
Xiaochen Ge ◽  
Momchil Minkov ◽  
Shanhui Fan ◽  
Xiuling Li ◽  
Weidong Zhou
Keyword(s):  
Photonic Crystal ◽  
Quality Factors ◽  
High Quality ◽  
Photonic Crystal Cavities ◽  
Index Contrast

Unidirectional reflectionlessness and nonreciprocal perfect absorption in optical waveguide system based on phase coupling between two photonic crystal cavities

2018 ◽  
Vol 27 (01) ◽  
pp. 1850004 ◽  
Author(s):  
Shu Jing Liu ◽  
Cong Zhang ◽  
Ruiping Bai ◽  
Xintong Gu ◽  
Hong Da Yin ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Waveguide ◽  
Quality Factors ◽  
Phase Coupling ◽  
High Quality ◽  
Perfect Absorption ◽  
Photonic Crystal Cavities ◽  
Exceptional Points ◽  
Waveguide System ◽  
Distance Formula

We demonstrate the unidirectional reflectionlessness at exceptional points (EPs) and nonreciprocal perfect absorption near EPs based on phase coupling between two photonic crystal cavities (PCCs) in optical waveguide. In our scheme, when distance [Formula: see text][Formula: see text]nm ([Formula: see text][Formula: see text]nm), the reflectivities for forward and backward (backward and forward) directions are closed to [Formula: see text] and [Formula: see text] ([Formula: see text] and [Formula: see text]), respectively, and absorptances of the nonreciprocal perfect absorptions for forward and backward directions are [Formula: see text] and [Formula: see text] with the high quality factors of [Formula: see text] and [Formula: see text], respectively.

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.

Nanocrystalline diamond photonics platform with high quality factor photonic crystal cavities

2012 ◽  
Vol 101 (17) ◽  
pp. 171115 ◽  
Author(s):  
X. Checoury ◽  
D. Néel ◽  
P. Boucaud ◽  
C. Gesset ◽  
H. Girard ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Quality Factor ◽  
Nanocrystalline Diamond ◽  
High Quality Factor ◽  
High Quality ◽  
Photonic Crystal Cavities

Group Delay Measurements of High Quality GaAs Photonic Crystal Cavities

2007 ◽  
Author(s):  
T. Sunner ◽  
M. Gellner ◽  
A. Loffler ◽  
M. Kamp ◽  
A. Forchel
Keyword(s):  
Photonic Crystal ◽  
Group Delay ◽  
High Quality ◽  
Photonic Crystal Cavities

Aluminum nitride piezo-acousto-photonic crystal nanocavity with high quality factors

2013 ◽  
Vol 102 (15) ◽  
pp. 153507 ◽  
Author(s):  
Linran Fan ◽  
Xiankai Sun ◽  
Chi Xiong ◽  
Carsten Schuck ◽  
Hong X. Tang
Keyword(s):  
Photonic Crystal ◽  
Aluminum Nitride ◽  
Quality Factors ◽  
High Quality

scholarly journals High quality factors and room-temperature lasing in a modified single-defect photonic crystal cavity

2004 ◽  
Vol 29 (7) ◽  
pp. 721 ◽  
Author(s):  
Marko Lonc̆ar ◽  
Michael Hochberg ◽  
Axel Scherer ◽  
Yueming Qiu
Keyword(s):  
Photonic Crystal ◽  
Room Temperature ◽  
Quality Factors ◽  
High Quality ◽  
Photonic Crystal Cavity ◽  
Single Defect
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