High precision fiber taper fabrication using the immersion depth control in chemical etching

2005 ◽  
Author(s):  
Fei Wu ◽  
Yi Yang ◽  
Stuart Yin
Keyword(s):  
High Precision ◽  
Chemical Etching ◽  
Immersion Depth ◽  
Fiber Taper ◽  
Depth Control

Measurement and alleviation of subsurface damage in a thick-crystal neutron interferometer

2019 ◽  
Vol 75 (6) ◽  
pp. 833-841 ◽  
Author(s):  
Benjamin Heacock ◽  
Robert Haun ◽  
Katsuya Hirota ◽  
Takuya Hosobata ◽  
Michael G. Huber ◽  
...  
Keyword(s):  
High Precision ◽  
Chemical Etching ◽  
Subsurface Damage ◽  
Interference Signal ◽  
Precision Grinding ◽  
Angular Misalignment ◽  
Thick Crystal ◽  
Neutron Interferometer ◽  
Grinding Technique ◽  
Spatially Varying

The construction is described of a monolithic thick-crystal perfect silicon neutron interferometer using an ultra-high-precision grinding technique and a combination of annealing and chemical etching that differs from the construction of prior neutron interferometers. The interferometer is the second to have been annealed after machining and the first to be annealed prior to chemical etching. Monitoring the interference signal at each post-fabrication step provides a measurement of subsurface damage and its alleviation. In this case, the strain caused by subsurface damage manifests itself as a spatially varying angular misalignment between the two relevant volumes of the crystal and is reduced from ∼10−5 rad to ∼10−9 rad by way of annealing and chemical etching.

scholarly journals Design of a novel 3D tip-based nanofabrication system with high precision depth control capability

2020 ◽  
Vol 169 ◽  
pp. 105328 ◽  
Author(s):  
Yanling Tian ◽  
Kangkang Lu ◽  
Fujun Wang ◽  
Zhiyong Guo ◽  
Chongkai Zhou ◽  
...  
Keyword(s):  
High Precision ◽  
Depth Control ◽  
Control Capability

scholarly journals Optical Trapping of Sub−Micrometer Particles with Fiber Tapers Fabricated by Fiber Pulling Assisted Chemical Etching

Photonics ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 367
Author(s):  
Chaoyang Ti ◽  
Yao Shen ◽  
Yiming Lei ◽  
Yuxiang Liu
Keyword(s):  
Optical Fibers ◽  
Single Particle ◽  
Chemical Etching ◽  
Optical Trapping ◽  
Three Dimensions ◽  
Fabrication Method ◽  
Particle Trapping ◽  
Fiber System ◽  
Batch Fabrication ◽  
Fiber Taper

Optical trapping of sub−micrometer particles in three dimensions has been attracting increasing attention in a wide variety of fields such as physics, chemistry, and biologics. Optical fibers that allow stable trapping of such particles are not readily available but beneficial in system integration and miniaturization. Here, we present a readily accessible batch fabrication method, namely tubeless fiber pulling assisted chemical etching, to obtain sharp tapered optical fibers from regular telecommunication single−mode fibers. We demonstrated the applications of such fiber tapers in two non−plasmonic optical trapping systems, namely single− and dual−fiber−taper−based trapping systems. We realized single particle trapping, multiple particle trapping, optical binding, and optical guiding with sub−micrometer silica particles. Particularly, using the dual fiber system, we observed the three−dimensional optical trapping of swarm sub−micrometer particles, which is more challenging to realize than trapping a single particle. Because of the capability of sub−micrometer particle trapping and the accessible batch fabrication method, the fiber taper−based trapping systems are highly potential tools that can find many applications in biology and physics.

J0202-3-3 Development of high precision depth control technique for underwater vehicle

2009 ◽  
Vol 2009.6 (0) ◽  
pp. 151-152
Author(s):  
Satoshi TERADA ◽  
Akihisa KONNO ◽  
Koichi HIRATA ◽  
Yoichi NIKI ◽  
Masakuni KAWADA
Keyword(s):  
High Precision ◽  
Underwater Vehicle ◽  
Control Technique ◽  
Depth Control

scholarly journals Precision Manufacturing of Patterned Beryllium Bronze Leaf Springs via Chemical Etching

2018 ◽  
Vol 8 (9) ◽  
pp. 1476 ◽  
Author(s):  
Rui-Jun Li ◽  
Peng-Yu Wang ◽  
Dan-Dong Li ◽  
Kuang-Chao Fan ◽  
Fang-Fang Liu ◽  
...  
Keyword(s):  
High Precision ◽  
Chemical Etching ◽  
High Energy ◽  
Mean Value ◽  
Leaf Spring ◽  
Wire Edm ◽  
Manufacturing Method ◽  
Beryllium Bronze ◽  
Leaf Springs ◽  
Traditional Manufacturing

Patterned leaf springs made of a beryllium bronze sheet are the key components of certain micro/nano contact probes. The accuracy of the probe is determined based on the precision of the formed pattern. However, a traditional manufacturing method using wire-electrode discharge machining (wire-EDM) is subject to poor tolerance at the sharp edges and corners. In addition, high energy consumption and costs are incurred for complex patterns. This paper presents a new chemical etching method for the manufacturing of a patterned leaf spring with high precision. Both the principle and process are introduced. Taguchi experiments were designed and conducted and the optimal process parameters were obtained based on the mean value and a variance analysis. Four V-shaped and some other complex patterned leaf springs were successfully fabricated. Comparison experiments concerning the characteristic parameters of the leaf spring were also conducted. The experimental results reveal that the patterned leaf springs manufactured through this method are much better than those achieved using wire-EDM. This manufacturing method can be used to fabricate different high-precision patterned leaf springs or membranes for coordinate measuring machines (CMM) probes and other measuring equipment.

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