scholarly journals Ultra-high channel-count wavelength demultiplexer based on a Bragg reflector waveguide with large angular dispersion

2012 ◽  
Vol 20 (26) ◽  
pp. B331 ◽  
Author(s):  
Xiaodong Gu ◽  
Toshikazu Shimada ◽  
Akihiro Matsutani ◽  
Fumio Koyama
Keyword(s):  
Bragg Reflector ◽  
Angular Dispersion ◽  
Wavelength Demultiplexer

scholarly journals Quantitative estimates of average geomagnetic axial dipole dominance in deep geological time

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Andrew J. Biggin ◽  
Richard K. Bono ◽  
Domenico G. Meduri ◽  
Courtney J. Sprain ◽  
Christopher J. Davies ◽  
...  
Keyword(s):  
Power Law ◽  
Geomagnetic Field ◽  
Recent Observation ◽  
Observational Constraint ◽  
Angular Dispersion ◽  
Geological Time ◽  
Future Studies ◽  
Axial Dipole ◽  
Quantitative Estimates

AbstractA defining characteristic of the recent geomagnetic field is its dominant axial dipole which provides its navigational utility and dictates the shape of the magnetosphere. Going back through time, much less is known about the degree of axial dipole dominance. Here we use a substantial and diverse set of 3D numerical dynamo simulations and recent observation-based field models to derive a power law relationship between the angular dispersion of virtual geomagnetic poles at the equator and the median axial dipole dominance measured at Earth’s surface. Applying this relation to published estimates of equatorial angular dispersion implies that geomagnetic axial dipole dominance averaged over 107–109 years has remained moderately high and stable through large parts of geological time. This provides an observational constraint to future studies of the geodynamo and palaeomagnetosphere. It also provides some reassurance as to the reliability of palaeogeographical reconstructions provided by palaeomagnetism.

Nano-porous UIO-66-NH2/TiO2 Bragg reflector for low concentration HCl gas sensing

2021 ◽  
pp. 1-1
Author(s):  
Kou Zhan ◽  
Zhaolong Wang ◽  
Yabin Zhu ◽  
Jun Yan ◽  
Yunlin Chen
Keyword(s):  
Gas Sensing ◽  
Bragg Reflector ◽  
Low Concentration ◽  
Hcl Gas

scholarly journals An ultra-compact dual-channel multimode wavelength demultiplexer based on inverse design

2021 ◽  
pp. 104489
Author(s):  
Huan Yuan ◽  
Jie Huang ◽  
Zehao Wang ◽  
Jinping Zhang ◽  
Yang Deng ◽  
...  
Keyword(s):  
Inverse Design ◽  
Wavelength Demultiplexer ◽  
Dual Channel

scholarly journals InGaAs metamorphic laser power converters with distributed Bragg reflector for wavelength range λ=1 – 1.1 µm

2020 ◽  
Author(s):  
Nikolay A. Kalyuzhnyy ◽  
Viktor M. Emelyanov ◽  
Sergey A. Mintairov ◽  
Mariia V. Nahimovich ◽  
Roman A. Salii ◽  
...  
Keyword(s):  
Wavelength Range ◽  
Laser Power ◽  
Power Converters ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector
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