Optical properties and long-term stability of unclad single crystal sapphire fiber in harsh environments

2019 ◽  
Author(s):  
Bo Liu ◽  
Michael Buric ◽  
Jeffrey Wuenschell ◽  
Subhabrata Bera ◽  
Benjamin Chorpening ◽  
...  
Keyword(s):  
Optical Properties ◽  
Single Crystal ◽  
Harsh Environments ◽  
Term Stability ◽  
Long Term Stability ◽  
Single Crystal Sapphire ◽  
Sapphire Fiber

Long-Term Stability of Optical Properties of Colloidal CdSe Nanocrystals in Polymer Matrices

2019 ◽  
Vol 18 (03n04) ◽  
pp. 1940052
Author(s):  
Yu. M. Azhniuk ◽  
V. V. Lopushansky ◽  
A. V. Gomonnai ◽  
B. V. Lopushanska ◽  
A. E. Raevskaya ◽  
...  
Keyword(s):  
Optical Properties ◽  
Optical Absorption ◽  
Polyvinyl Alcohol ◽  
Aqueous Solutions ◽  
Polymer Matrices ◽  
Cdse Nanocrystals ◽  
Term Stability ◽  
Long Term Stability ◽  
Mild Conditions

Properties of CdSe nanocrystals (NCs) fabricated in aqueous solutions at relatively mild conditions in the presence of gelatine and stabilized in polymer (gelatine, gelatine + polyvinylpyrrolidone, polyvinyl alcohol) matrices are characterized by Raman, optical absorption and photoluminescence spectroscopies. The effect of heating of the reaction mixture on the average NC size is discussed.

A formamidinium–methylammonium lead iodide perovskite single crystal exhibiting exceptional optoelectronic properties and long-term stability

2017 ◽  
Vol 5 (36) ◽  
pp. 19431-19438 ◽  
Author(s):  
Wen-Guang Li ◽  
Hua-Shang Rao ◽  
Bai-Xue Chen ◽  
Xu-Dong Wang ◽  
Dai-Bin Kuang
Keyword(s):  
Single Crystal ◽  
Optoelectronic Properties ◽  
Alloy Single Crystal ◽  
Lead Iodide ◽  
Term Stability ◽  
Long Term Stability ◽  
Mixed Cation ◽  
Methylammonium Lead Iodide

Mixed cation formamidinium–methylammonium perovskite alloy single crystal outstrips the sole cation single crystal in both long-term stability and optoelectronic properties.

Long-term stability of single-crystal silicon microresonators

2004 ◽  
Vol 115 (1) ◽  
pp. 23-27 ◽  
Author(s):  
M. Koskenvuori ◽  
T. Mattila ◽  
A. Häärä ◽  
J. Kiihamäki ◽  
I. Tittonen ◽  
...  
Keyword(s):  
Single Crystal ◽  
Single Crystal Silicon ◽  
Crystal Silicon ◽  
Term Stability ◽  
Long Term Stability

NANOSECOND RESPONSE POLYMER ELECTRO-OPTIC SWITCH WITH HIGH POLING EFFICIENCY AND GOOD LONG-TERM STABILITY

2013 ◽  
Vol 27 (22) ◽  
pp. 1350154 ◽  
Author(s):  
JIAN SUN ◽  
XIBIN WANG ◽  
YUANBIN YUE ◽  
JIE MENG ◽  
XIAOQIANG SUN ◽  
...  
Keyword(s):  
Optical Properties ◽  
Insertion Loss ◽  
Order Parameter ◽  
Response Speed ◽  
Characteristic Parameters ◽  
Term Stability ◽  
Long Term Stability ◽  
Electro Optic ◽  
Poling Temperature

In this paper, a Mach–Zehnder interferometer (MZI) electro-optic (EO) polymer switch with a guest–host material Disperse Red 19(DR19)/SU-8 has been designed and fabricated. The optical properties of the DR19/SU-8 were characterized in detail. By optimizing the poling temperature, the DR19/SU-8 material exhibits a high poling efficiency and a good long-term stability. The order parameter Φ is calculated as 0.65 and electro-optic coefficient γ33 is measured to be 11 pm/V. After about 1440 h, the γ33 remains stable at 7.4 pm/V. The characteristic parameters of the waveguide were carefully designed and fabrication process was strictly controlled. At 1550 nm, the insertion loss of the device is 11.2 dB. The rise time and fall time of the switch are 26.6 ns and 22.5 ns, respectively. Owing to the nanosecond response speed and good long-term stability, this switch exhibits potential for planar active lightwave circuit applications.

Toward Long-Term Stability: Single-Crystal Alloys of Cesium-Containing Mixed Cation and Mixed Halide Perovskite

2019 ◽  
Vol 141 (4) ◽  
pp. 1665-1671 ◽  
Author(s):  
Liang Chen ◽  
Yan-Yan Tan ◽  
Zhi-Xin Chen ◽  
Tan Wang ◽  
Shu Hu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Term Stability ◽  
Long Term Stability ◽  
Mixed Cation ◽  
Halide Perovskite

Highly stable and active SERS substrates with Ag–Ti alloy nanorods

Nanoscale ◽  
2018 ◽  
Vol 10 (42) ◽  
pp. 19863-19870 ◽  
Author(s):  
Yuehua Liu ◽  
Hui Wu ◽  
Lingwei Ma ◽  
Sumeng Zou ◽  
Yunhan Ling ◽  
...  
Keyword(s):  
Chemical Activity ◽  
Harsh Environments ◽  
Ti Alloy ◽  
Term Stability ◽  
Long Term Stability ◽  
Sers Substrates ◽  
Oxidation And Corrosion

Ag–Ti alloy nanorods are designed and fabricated. Taking advantage of the higher chemical activity of Ti compared with Ag, Ti can be sacrificed against oxidation and corrosion, protecting Ag in harsh environments, further ensuring long-term stability of the SERS substrates.

Sign in / Sign up

Export Citation Format

Share Document