Zero-order-free 2D beam pattern projecting on-chip lasers

2020 ◽  
Author(s):  
Kazuyoshi Hirose ◽  
Yoshitaka Kurosaka ◽  
Yu Takiguchi ◽  
Takahiro Sugiyama ◽  
Soh Uenoyama ◽  
...  
Keyword(s):  
Zero Order ◽  
Beam Pattern ◽  
On Chip

scholarly journals Removal of surface-normal spot beam from on-chip 2D beam pattern projecting lasers

2018 ◽  
Vol 26 (23) ◽  
pp. 29854 ◽  
Author(s):  
Kazuyoshi Hirose ◽  
Yu Takiguchi ◽  
Takahiro Sugiyama ◽  
Yoshiro Nomoto ◽  
Soh Uenoyama ◽  
...  
Keyword(s):  
Beam Pattern ◽  
Surface Normal ◽  
On Chip ◽  
Spot Beam

Beam Pattern Projecting On-Chip Lasers at Visible Wavelength

2019 ◽  
Author(s):  
Yoshitaka Kurosaka ◽  
Kazuyoshi Hirose ◽  
Akio Ito ◽  
Masahiro Hitaka ◽  
Akira Higuchi ◽  
...  
Keyword(s):  
Beam Pattern ◽  
Visible Wavelength ◽  
On Chip

scholarly journals Principle of beam generation in on-chip 2D beam pattern projecting lasers

2018 ◽  
Vol 26 (8) ◽  
pp. 10787 ◽  
Author(s):  
Yu Takiguchi ◽  
Kazuyoshi Hirose ◽  
Takahiro Sugiyama ◽  
Yoshiro Nomoto ◽  
Soh Uenoyama ◽  
...  
Keyword(s):  
Beam Pattern ◽  
Beam Generation ◽  
On Chip

Strain measurement in In0.2Ga0.8As/GaAs quantum wires by convergent beam electron diffraction

1995 ◽  
Vol 53 ◽  
pp. 444-445
Author(s):  
S. Hillyard ◽  
Y.-P. Chen ◽  
J.D. Reed ◽  
W.J. Schaff ◽  
L.F. Eastman ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Semiconductor Lasers ◽  
Quantum Wire ◽  
Quantum Wires ◽  
Convergent Beam Electron Diffraction ◽  
Zero Order ◽  
Beam Electron ◽  
Local Lattice ◽  
Device Applications ◽  
Convergent Beam

The positions of high-order Laue zone (HOLZ) lines in the zero order disc of convergent beam electron diffraction (CBED) patterns are extremely sensitive to local lattice parameters. With proper care, these can be measured to a level of one part in 104 in nanometer sized areas. Recent upgrades to the Cornell UHV STEM have made energy filtered CBED possible with a slow scan CCD, and this technique has been applied to the measurement of strain in In0.2Ga0.8 As wires.Semiconductor quantum wire structures have attracted much interest for potential device applications. For example, semiconductor lasers with quantum wires should exhibit an improvement in performance over quantum well counterparts. Strained quantum wires are expected to have even better performance. However, not much is known about the true behavior of strain in actual structures, a parameter critical to their performance.

Gut microbiome a promising target for management of respiratory diseases

2020 ◽  
Vol 477 (14) ◽  
pp. 2679-2696
Author(s):  
Riddhi Trivedi ◽  
Kalyani Barve
Keyword(s):  
Respiratory Diseases ◽  
New Technology ◽  
Bacterial Flora ◽  
Systemic Circulation ◽  
The Body ◽  
Lung Pathology ◽  
Promising Target ◽  
Current Therapies ◽  
Intestinal Microbial Flora ◽  
On Chip

The intestinal microbial flora has risen to be one of the important etiological factors in the development of diseases like colorectal cancer, obesity, diabetes, inflammatory bowel disease, anxiety and Parkinson's. The emergence of the association between bacterial flora and lungs led to the discovery of the gut–lung axis. Dysbiosis of several species of colonic bacteria such as Firmicutes and Bacteroidetes and transfer of these bacteria from gut to lungs via lymphatic and systemic circulation are associated with several respiratory diseases such as lung cancer, asthma, tuberculosis, cystic fibrosis, etc. Current therapies for dysbiosis include use of probiotics, prebiotics and synbiotics to restore the balance between various species of beneficial bacteria. Various approaches like nanotechnology and microencapsulation have been explored to increase the permeability and viability of probiotics in the body. The need of the day is comprehensive study of mechanisms behind dysbiosis, translocation of microbiota from gut to lung through various channels and new technology for evaluating treatment to correct this dysbiosis which in turn can be used to manage various respiratory diseases. Microfluidics and organ on chip model are emerging technologies that can satisfy these needs. This review gives an overview of colonic commensals in lung pathology and novel systems that help in alleviating symptoms of lung diseases. We have also hypothesized new models to help in understanding bacterial pathways involved in the gut–lung axis as well as act as a futuristic approach in finding treatment of respiratory diseases caused by dysbiosis.

Study on Discrete Autonomous Traffic Flow Model with Zero-Order Hold

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Lidong Zhang ◽  
Wenxing Zhu ◽  
Mengmeng Zhang ◽  
Cuijiao Chen
Keyword(s):  
Traffic Flow ◽  
Flow Model ◽  
Zero Order ◽  
Traffic Flow Model
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