Preparation of Iridescent 2D Photonic Crystals by Using a Mussel-Inspired Spatial Patterning of ZIF-8 with Potential Applications in Optical Switch and Chemical Sensor

2017 ◽  
Vol 9 (43) ◽  
pp. 38076-38080 ◽  
Author(s):  
Amir Razmjou ◽  
Mohsen Asadnia ◽  
Omid Ghaebi ◽  
Hao-Cheng Yang ◽  
Majid Ebrahimi Warkiani ◽  
...  
2015 ◽  
Vol 19 (sup1) ◽  
pp. S1-219-S1-221
Author(s):  
Z. H. Wu ◽  
Q. Zhang ◽  
B. Tang ◽  
Y. Qiu ◽  
Q. Luo

2018 ◽  
Vol 38 (5) ◽  
pp. 0513002
Author(s):  
梁龙学 Liang Longxue ◽  
张晓金 Zhang Xiaojin ◽  
吴小所 Wu Xiaosuo ◽  
张云霞 Zhang Yunxia ◽  
赵丹 Zhao Dan

2009 ◽  
Vol 18 (01) ◽  
pp. 49-72 ◽  
Author(s):  
XIANFENG CHEN ◽  
KUN LIU ◽  
JIANHONG SHI

In this paper, we review current research on the applications of periodically poled lithium niobate (PPLN) by use of polarization coupling in our and other research groups. Tunable wavelength Solc-type filter, polarization controller and electro-optical switch based on PPLN are presented, which show potential applications in optical communications and optical information processing.


2011 ◽  
Vol 284 (8) ◽  
pp. 2230-2235 ◽  
Author(s):  
Reza Asadi ◽  
Mohammad Malek-Mohammad ◽  
Sina Khorasani

2010 ◽  
Vol 663-665 ◽  
pp. 645-649
Author(s):  
Feng Xian Qiu ◽  
Qing Zhang ◽  
Dong Ya Yang

A novel polyelectrolyte (PLJY) was synthesized based on the azobenzene chromophore containing functional groups (-C=C-) and α-methacrylic acid by radical polymerization. The PLJY was characterized by FT-IR and UV-vis spectroscopy. The thermal property was characterized using the differential scanning calorimeter (DSC). The glass transition temperatures (Tg) was 179.1 oC and showed that the PLJY had excellent thermal stability. Influences of pH values on the UV-Vis absorption spectra of PLJY were studied and polyelectrolyte solution had good pH-sensitivity and H-aggregation behavior. The photoresponsive and thermochromism behaviors were investigated for the azo polyelectrolyte PLJY solution or film. By 256 nm excitation wavelength, the PLJY solution or film appeared photo responsive behavior. At high temperature, the PLJY solution had thermochromic behavior. These results showed that the polyelectrolyte had potential applications in optical information storage and optical switch.


2014 ◽  
Vol 699 ◽  
pp. 318-324 ◽  
Author(s):  
Syara Kassim ◽  
S. Padmanabhan ◽  
J. McGrath ◽  
M.E. Pemble

The bottom-up colloidal synthesis of photonic band gap (PBG) materials or photonic crystals (PC) has attracted considerable interest as compared to so-called top-down lithographic approaches due to the simple processing steps involved and the prospect of the economically viable production of complex 3-dimensional optical materials from simple colloidal particles. To date self-assembly techniques constitute the most popular approach to fabricate 3D photonic crystals from colloidal particle suspensions. Based on the natural tendency of monodisperse colloidal particles to organise into ordered arrays, this method represent the best option due to the ease of fabrication, ability to produce larger area samples and cost. Here we report on the fabrication of long range three-dimensional (3D) ordered poly (methyl methacrylate) (PMMA)-silica PC structures and the subsequent fabrication of robust silica inverse opals using self-assembly methods. The optical properties of these materials are described and discussed in terms of potential applications of these materials.


Author(s):  
J. D. Joannopoulos ◽  
Pierre R. Villeneuve ◽  
Shanhui Fan

1997 ◽  
Vol 51 (12) ◽  
pp. 1845-1848 ◽  
Author(s):  
Jiaying Ma ◽  
Dor Ben-Amotz

A new technique for rapid Raman imaging and chemical analysis of micro-composites and biomaterials, with potential applications in real-time robotic vision, automated manufacturing, and medical imaging, is described and demonstrated. The key feature of this new instrument is a fiber-optic bundle used to compress two-dimensional images onto a one-dimensional fiber stack, which serves as the entrance slit of an imaging optical spectrograph. Thus a complete Raman spectrum is simultaneously collected from every point within a sample in a single scan of a charge-coupled-device (CCD) detector. The method is demonstrated by using Raman imaging of a microscopic mixed-salt sample. Its efficiency relative to alternative Raman imaging methods is quantitatively evaluated, and potential applications in other spectral imaging measurements are discussed. Index Headings: Raman spectroscopy; Spectral imaging; Chemical imaging; Fiber optics; Chemical sensor.


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