Research progress of high-resolution arrayed waveguide spectroscopy

2021 ◽  
Author(s):  
Dong Lin ◽  
Zhuangzhuang Zhu ◽  
Xiaoming Zhu ◽  
Jinping He
Keyword(s):  
High Resolution ◽  
Research Progress ◽  
Arrayed Waveguide

scholarly journals High-Resolution Pixel LED Headlamps: Functional Requirement Analysis and Research Progress

2021 ◽  
Vol 11 (8) ◽  
pp. 3368
Author(s):  
Liping Wang ◽  
Jianshe Ma ◽  
Ping Su ◽  
Jianwei Huang
Keyword(s):  
High Resolution ◽  
Functional Diversity ◽  
Traffic Safety ◽  
New Technologies ◽  
Light Distribution ◽  
Research Progress ◽  
Requirement Analysis ◽  
Functional Requirement ◽  
Traffic Conditions ◽  
The Subject

High-resolution pixel LED headlamps are lighting devices that can produce high-resolution light distribution to adapt to road and traffic conditions, intelligently illuminate traffic areas, and assist drivers. Due to the complexity of roads and traffic conditions, the functional diversity of high-resolution pixel LEDs headlamps and traffic safety has come into question and is the subject of in-depth research conducted by car manufacturers and regulators. We summarize the current possible functions of high-resolution pixel LED headlamps and analyze ways in which they could be improved. This paper also discusses the prospect of new technologies in the future.

High Resolution and Ultra-Compact On-Chip Spectrometer Using Bidirectional Edge-Input Arrayed Waveguide Grating

2020 ◽  
Vol 38 (16) ◽  
pp. 4447-4453
Author(s):  
Jun Zou ◽  
Xiao Ma ◽  
Xiang Xia ◽  
Jinhua Hu ◽  
Changhui Wang ◽  
...  
Keyword(s):  
High Resolution ◽  
Arrayed Waveguide Grating ◽  
Waveguide Grating ◽  
On Chip ◽  
Arrayed Waveguide

scholarly journals A high-resolution silicon-on-insulator arrayed waveguide grating microspectrometer with sub-micrometer aperture waveguides

2007 ◽  
Vol 15 (5) ◽  
pp. 2299 ◽  
Author(s):  
P. Cheben ◽  
J. H. Schmid ◽  
A. Delâge ◽  
A. Densmore ◽  
S. Janz ◽  
...  
Keyword(s):  
High Resolution ◽  
Silicon On Insulator ◽  
Arrayed Waveguide Grating ◽  
Waveguide Grating ◽  
Arrayed Waveguide

scholarly journals High-resolution entrainment mapping of gastric pacing: a new analytical tool

2010 ◽  
Vol 298 (2) ◽  
pp. G314-G321 ◽  
Author(s):  
Gregory O'Grady ◽  
Peng Du ◽  
Wim J. E. P. Lammers ◽  
John U. Egbuji ◽  
Pulasthi Mithraratne ◽  
...  
Keyword(s):  
High Resolution ◽  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Field Analysis ◽  
Research Progress ◽  
Multielectrode Arrays ◽  
Gastric Pacing ◽  
Improve Symptom ◽  
Accurate Quantification

Gastric pacing has been investigated as a potential treatment for gastroparesis. New pacing protocols are required to improve symptom and motility outcomes; however, research progress has been constrained by a limited understanding of the effects of electrical stimulation on slow-wave activity. This study introduces high-resolution (HR) “entrainment mapping” for the analysis of gastric pacing and presents four demonstrations. Gastric pacing was initiated in a porcine model (typical amplitude 4 mA, pulse width 400 ms, period 17 s). Entrainment mapping was performed using flexible multielectrode arrays (≤192 electrodes; 92 cm2) and was analyzed using novel software methods. In the first demonstration, entrainment onset was quantified over successive waves in spatiotemporal detail. In the second demonstration, slow-wave velocity was accurately determined with HR field analysis, and paced propagation was found to be anisotropic (longitudinal 2.6 ± 1.7 vs. circumferential 4.5 ± 0.6 mm/s; P < 0.001). In the third demonstration, a dysrhythmic episode that occurred during pacing was mapped in HR, revealing an ectopic slow-wave focus and uncoupled propagations. In the fourth demonstration, differences were observed between paced and native slow-wave amplitudes (0.24 ± 0.08 vs. 0.38 ± 0.14 mV; P < 0.001), velocities (6.2 ± 2.8 vs. 11.5 ± 4.7 mm/s; P < 0.001), and activated areas (20.6 ± 1.9 vs. 32.8 ± 2.6 cm2; P < 0.001). Entrainment mapping enables an accurate quantification of the effects of gastric pacing on slow-wave activity, offering an improved method to assess whether pacing protocols are likely to achieve physiologically and clinically useful outcomes.

scholarly journals Tunable optical dispersion compensator with a high-resolution arrayed-waveguide grating

2011 ◽  
Vol 8 (24) ◽  
pp. 2087-2092 ◽  
Author(s):  
Yuichiro Ikuma ◽  
Takayuki Mizuno ◽  
Hiroshi Takahashi ◽  
Hiroyuki Tsuda
Keyword(s):  
High Resolution ◽  
Arrayed Waveguide Grating ◽  
Waveguide Grating ◽  
Optical Dispersion ◽  
Dispersion Compensator ◽  
Arrayed Waveguide
Sign in / Sign up

Export Citation Format

Share Document