Luminescent small-diameter 3C-SiC nanocrystals fabricated via a simple chemical etching method

2007 ◽  
Vol 18 (36) ◽  
pp. 365603 ◽  
Author(s):  
J Zhu ◽  
Z Liu ◽  
X L Wu ◽  
L L Xu ◽  
W C Zhang ◽  
...  
Keyword(s):  
Chemical Etching ◽  
Small Diameter ◽  
Etching Method ◽  
Simple Chemical

Fabrication of Superhydrophobic Surfaces on Aluminum Alloy by Simple Chemical Etching Method

2011 ◽  
Vol 239-242 ◽  
pp. 2270-2273 ◽  
Author(s):  
Yong Feng Luo ◽  
Hai Yan Lang ◽  
Jin Liang ◽  
Guo Sheng Peng ◽  
You Hua Fan ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Chemical Etching ◽  
Optical Methods ◽  
Hydrophobic Surfaces ◽  
Sliding Angle ◽  
Water Contact ◽  
Binary Structure ◽  
Etching Method ◽  
Simple Chemical ◽  
Scanning Electron

A facial chemical etching method was developed for fabricating stable super-hydrophobic surfaces on aluminum alloy foils. The microstructure and wettability of super-hydrophobic surfaces were characterized by scanning electron microscopy, water contact angle (CA) measurement, and optical methods. The surfaces of the modified aluminum alloy substrates exhibit superhydrophobicity, with a CA of 164.8°±1.6° and a water sliding angle of about 5°. The etched surfaces have binary structure consisting of the irregular microscale plateaus and caves in which there are the nanoscale block-like convexes and hollows.

scholarly journals Polymer Optical Fiber Tip Mass Production Etch Mechanism to Achieve CPC Shape for Improved Biosensor Performance

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 285 ◽  
Author(s):  
Hafeez Hassan ◽  
Ole Bang ◽  
Jakob Janting
Keyword(s):  
Optical Fiber ◽  
Mass Production ◽  
Chemical Etching ◽  
Glucose Sensor ◽  
Polymer Optical Fiber ◽  
The Core ◽  
Compound Parabolic Concentrator ◽  
Etching Method ◽  
Simple Chemical ◽  
Tip Mass

We report on a simple chemical etching method that enables nonlinear tapering of Polymer Optical Fiber (POF) tips to manufacture Compound Parabolic Concentrator (CPC) fiber tips. We show that, counter-intuitively, nonlinear tapering can be achieved by first etching the core and not the cladding. The etching mechanism is modelled and etched tips are characterized both geometrically and optically in a fluorescence glucose sensor chemistry. A Zemax model of the CPC tipped sensor predicts an optimal improvement in light capturing efficiency of a factor of 3.96 compared to the conventional sensor with a plane-cut fiber tip. A batch of eight CPC fiber tips has been manufactured by the chemical etching method. The batch average showed an increase of a factor of 3.16, which is only 20% less than the predicted value. The method is reproducible and can be up-scaled for mass production.

scholarly journals FABRICATION OF LARGE CONE ANGLE OPTICAL FIBER PROBE BY DYNAMIC CHEMICAL ETCHING METHOD

2001 ◽  
Vol 50 (12) ◽  
pp. 2382
Author(s):  
SUN JIA-LIN ◽  
TIAN GUANG-YAN ◽  
LI QIN ◽  
ZHAO JUN ◽  
GUO JI-HUA ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Chemical Etching ◽  
Cone Angle ◽  
Fiber Probe ◽  
Optical Fiber Probe ◽  
Etching Method ◽  
Large Cone Angle

FREQUENCY TRIMMING OF THE STW RESONATORS WITH WORKING FREQUENCY UP TO 1 GHZ

2021 ◽  
pp. 79-85
Author(s):  
A. N. Kuznetsov ◽  
S. A. Doberstein ◽  
I. V. Veremeev
Keyword(s):  
Quality Factor ◽  
Chemical Etching ◽  
Single Port ◽  
Frequency Range ◽  
Plasma Chemical ◽  
Etching Method ◽  
Plasma Chemical Etching ◽  
Working Frequency ◽  
Frequency Trimming

This paper presents the data for frequency trimming of the single port STW resona-tors in a frequency range of 500–1000 MHz by plasma chemical etching method. The main parameters of resonators after frequency trimming are given: frequency tolerance <±100·10–6, quality factor of 8600–9500, equivalent elements needed for use of the STW resonators.

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