scholarly journals Effect of graphene oxide inclusion on the optical reflection of a silica photonic crystal film

RSC Advances ◽  
2018 ◽  
Vol 8 (30) ◽  
pp. 16593-16602 ◽  
Author(s):  
Cheng Hao Lee ◽  
Jiali Yu ◽  
Yanming Wang ◽  
Alan Yiu Lun Tang ◽  
Chi Wai Kan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Photonic Crystal ◽  
Photonic Crystals ◽  
Oxide Inclusion ◽  
Optical Reflectance ◽  
Optical Reflection ◽  
Peak Broadening ◽  
Crystal Film ◽  
Reflectance Peak

In this study, the inclusion of graphene oxide in silica photonic crystals was found to affect optical reflectance intensity and reflectance peak broadening.

Amorphous colloidal photonic crystals assembled by mesoporous silica particles for thin layer chromatography with high separation efficiency and colorimetric recognition

2020 ◽  
Vol 8 (48) ◽  
pp. 17202-17210
Author(s):  
Xin Zhang ◽  
Yumei Ran ◽  
Qianqian Fu ◽  
Jianping Ge
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Mesoporous Silica ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Separation Efficiency ◽  
Colloidal Photonic Crystals ◽  
Crystal Film ◽  
Layer Chromatography ◽  
High Separation

A mesoporous SiO2 amorphous photonic crystal film was used to develop new thin-layer chromatography with high separation efficiency and simplified recognition.

Fluoral-p infiltrated SiO2 inverse opal photonic crystals as fluorescent film sensors for detecting formaldehyde vapor

2016 ◽  
Vol 4 (41) ◽  
pp. 9841-9847 ◽  
Author(s):  
Yuqi Zhang ◽  
Lidan Mu ◽  
Ru Zhou ◽  
Pei Li ◽  
Jiaqi Liu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Fluorescent Sensor ◽  
High Sensitivity ◽  
Inverse Opal ◽  
Quick Response ◽  
Crystal Film ◽  
Formaldehyde Vapor ◽  
Excellent Selectivity

A Fluoral-p infiltrated SiO2 inverse opal photonic crystal film can be employed as a fluorescent sensor with a quick response, high sensitivity, excellent selectivity and convenient recyclability for the detection of formaldehyde.

Discoloration response of graphene oxide pseudo-photonic crystal film on flexible substrate

2020 ◽  
pp. 101703
Author(s):  
Peijun Xu ◽  
Xin Feng ◽  
Ru Zhang ◽  
Xinliang Guo ◽  
Yi Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Photonic Crystal ◽  
Flexible Substrate ◽  
Crystal Film

A bioinspired poly(N-isopropylacrylamide)/silver nanocomposite as a photonic crystal with both optical and thermal responses

Nanoscale ◽  
2017 ◽  
Vol 9 (35) ◽  
pp. 12969-12975 ◽  
Author(s):  
Xiang Fei ◽  
Tao Lu ◽  
Jun Ma ◽  
Shenmin Zhu ◽  
Di Zhang
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Butterfly Wing ◽  
Silver Nanocomposite

Photonic crystals with both optical and thermal responses based on a natural butterfly wing template.

Graphene oxide hydrogel improved sensitivity in one-dimensional photonic crystals for detection of beta-glucan

RSC Advances ◽  
2015 ◽  
Vol 5 (94) ◽  
pp. 77211-77216 ◽  
Author(s):  
Jiaoyu Ren ◽  
Hongyun Xuan ◽  
Cihui Liu ◽  
Chong Yao ◽  
Yanxi Zhu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Photonic Crystals ◽  
Congo Red ◽  
Beta Glucan ◽  
New Approach ◽  
One Dimensional

This study establishes a new approach to quantify beta-glucan in oats by combining the dye Congo red with 1DPhCs with a PANI defect.

Photonic crystals: A platform for label-free and enhanced fluorescence biomolecular and cellular assays

2008 ◽  
Vol 1133 ◽  
Author(s):  
Brian T. Cunningham ◽  
Leo Chan ◽  
Patrick C. Mathias ◽  
Nikhil Ganesh ◽  
Sherine George ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
High Throughput Screening ◽  
High Sensitivity ◽  
Excitation Wavelength ◽  
Label Free ◽  
Crystal Surfaces ◽  
Enhanced Fluorescence ◽  
Preferred Direction ◽  
Label Free Detection

Abstract Photonic crystal surfaces represent a class of resonant optical structures that are capable of supporting high intensity electromagnetic standing waves with near-field and far-field properties that can be exploited for high sensitivity detection of biomolecules and cells. While modulation of the resonant wavelength of a photonic crystal by the dielectric permittivity of adsorbed biomaterials enables label-free detection, the resonance can also be tuned to coincide with the excitation wavelength of common fluorescent tags - including organic molecules and semiconductor quantum dots. Photonic crystals are also capable of efficiently channeling fluorescent emission into a preferred direction for enhanced extraction efficiency. Photonic crystals can be designed to support multiple resonant modes that can perform label free detection, enhanced fluorescence excitation, and enhanced fluorescence extraction simultaneously on the same device. Because photonic crystal surfaces may be inexpensively produced over large surface areas by nanoreplica molding processes, they can be incorporated into disposable labware for applications such as pharmaceutical high throughput screening. In this talk, the optical properties of surface photonic crystals will be reviewed and several applications will be described, including results from screening a 200,000-member chemical compound library for inhibitors of protein-DNA interactions, gene expression microarrays, and high sensitivity of protein biomarkers.

Optical properties of graphene oxide coupled with 3D opal based photonic crystal

2018 ◽  
Vol 86 ◽  
pp. 326-330 ◽  
Author(s):  
I. Severin ◽  
V. Boiko ◽  
V. Moiseyenko ◽  
M. Olenchuk ◽  
A. Goushcha ◽  
...  
Keyword(s):  
Optical Properties ◽  
Graphene Oxide ◽  
Photonic Crystal

scholarly journals Far-Field Focus and Dispersionless Anticrossing Bands in Two-Dimensional Photonic Crystals

2007 ◽  
Vol 2007 ◽  
pp. 1-8
Author(s):  
Xiaoshuang Chen ◽  
Renlong Zhou ◽  
Yong Zeng ◽  
Hongbo Chen ◽  
Wei Lu
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Negative Refraction ◽  
Far Field ◽  
Two Dimensional ◽  
Surface Polaritons ◽  
Concave Lens ◽  
Bloch Mode ◽  
Two Dimensional Photonic Crystal ◽  
Photonic Band

We review the simulation work for the far-field focus and dispersionless anticrossing bands in two-dimensional (2D) photonic crystals. In a two-dimensional photonic-crystal-based concave lens, the far-field focus of a plane wave is given by the distance between the focusing point and the lens. Strong and good-quality far-field focusing of a transmitted wave, explicitly following the well-known wave-beam negative refraction law, can be achieved. The spatial frequency information of the Bloch mode in multiple Brillouin zones (BZs) is investigated in order to indicate the wave propagation in two different regions. When considering the photonic transmission in a 2D photonic crystal composed of a negative phase-velocity medium (NPVM), it is shown that the dispersionless anticrossing bands are generated by the couplings among the localized surface polaritons of the NPVM rods. The photonic band structures of the NPVM photonic crystals are characterized by a topographical continuous dispersion relationship accompanied by many anticrossing bands.

scholarly journals Optical properties of GaAs 2D Archimedean photonic lattice tiling with the p4g symmetry

2008 ◽  
Vol 40 (2) ◽  
pp. 167-173 ◽  
Author(s):  
Dj. Jovanovic ◽  
R. Gajic ◽  
K. Hingerl
Keyword(s):  
Optical Properties ◽  
Photonic Crystal ◽  
Photonic Crystals ◽  
Negative Refraction ◽  
Group Symmetry ◽  
Electromagnetic Propagation ◽  
Space Group Symmetry ◽  
Space Group ◽  
Left Handedness ◽  
Archimedean Lattice

In this paper we present our investigation of 2D Archimedean lattice photonic crystals with p4g space group symmetry. The structures are made of GaAs both as air holes and dielectric rods in air. In order to analyze the photonic crystal optical properties we performed calculations of the band structures, equi-frequency contours and electromagnetic propagation through the basic structures and waveguides. In addition, we investigated negative refraction and left-handedness in the p4g photonic crystal.

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