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Photocathodes are materials that emit electrons when illuminated by light, and are vital to the performance of some of the world’s most powerful particle accelerators.
2018年SPIE非成像光学会议（SPIE Nonimaging Optics:Efficient Design for Illumination and Solar Concentration XV）
2018年 SPIE 非成像光学 会议
2017/11/27
Many important optical subsystems are concerned with power transfer and brightness rather than with image fidelity. Nonimaging optics is a design approach that departs from the methods of traditional ...
2017SPIE非成像光学专题会议（Nonimaging Optics:Efficient Design for Illumination and Solar Concentration XIV）
2017 SPIE 非成像光学 专题会议
2017/4/25
2017SPIE非成像光学专题会议（Nonimaging Optics:Efficient Design for Illumination and Solar Concentration XIV）。
New Design Results in Compact,Highly Efficient Frequency Comb
New Design Results Compact Highly Efficient Frequency Comb
2017/3/30
Northwestern Engineering researchers have designed a quantum cascade laser (QCL) frequency comb that is dramatically more efficient than previous iterations. Led by Manijeh Razeghi, researchers i...
Making Hydrogen Fuel from Water and Visible Light Highly Efficient（图）
Making Hydrogen Fuel Water Visible Light Highly Efficient
2015/9/9
Mimicking photosynthesis is not easy. The bottleneck of artificial photosynthesis is visible light, because converting it into other forms of energy is not efficient. Researchers at Michigan Technolog...
EFFICIENT HOUGH TRANSFORM FOR AUTOMATIC DETECTION OF CYLINDERS IN POINT CLOUDS
Cylinder detection Object recognition Hough Transform Reverse Engineering
2015/8/13
We present an efficient Hough transform for automatic detection of cylinders in point clouds. As cylinders are one of
the most frequently used primitives for industrial design, automatic and ro...
Efficient Polarized Backlight for Transflective Liquid Crystal Display Illumination
backlight polarization conversion birefringence transflective LCD
2011/11/25
A collimated backlight was designed for high-efficiency transflective liqud crystal display (LCD) illumination. Additionally, polarization separation was achieved by selective total internal reflectio...
Efficient computation of equifrequency surfaces and density of states in photonic crystals using Dirichlet-to-Neumann maps
Efficient computation equifrequency surfaces photonic crystals Dirichlet-to-Neumann maps
2015/8/10
We present an efficient method for computing the equifrequency surfaces (EFSs) and density of states of a photonic crystal. The method is based on repeatedly solving a small nonlinear eigenvalue probl...
Implementation Efficient Nonlinear Equalizer Based on Correlated Digital Backpropagation
Optical communications Coherent communication Phase modulation
2015/5/26
One stage per span is commonly considered as the lower boundary for implementation complexity of nonlinear equalizer based on digital backpropagation. The proposed method overcomes this boundary and i...
Energy Efficient Content Distribution for VoD Services
Networks network optimization network topology
2015/5/26
The energy consumption of VoD services arising from storage and transport of video contents stored in different content placement locations is investigated. Our results provide insight into content pl...
Energy-efficient Flow Aggregation for IPTV Program Delivery in Optical Backbone Networks with Multiple Line Rates
Networks multicast network optimization
2015/5/26
Considering energy efficiency for IPTV program delivery in optical backbone networks with multiple available line rates, we propose energy-efficient flow aggregation to guarantee that the total energy...
High Speed Energy-Efficient Germanium Electro- absorption Modulator Featuring Monolithic Integration with Germanium p-i-n Photodetector
Optical devices Modulators
2015/5/26
We report a novel evanescent-coupled germanium electro-absorption modulator with a small active area of 16 μm 2 OCIS codes: (230.0230) Optical devices; (230.4110) Modulators giving an extinction ratio...
Energy-efficient Connection Provisioning in WDM Optical Networks
All-optical networks Networks assignment routing algorithms
2015/5/26
A novel energy-efficient dynamic provisioning scheme is proposed by using an intelligent load control mechanism and an auxiliary graph model. Significant reduction in total energy consumption is achie...
Energy Efficient Grooming of Scheduled Sub-wavelength Traffic Demands
Networks network optimization
2015/5/26
We investigate how awareness of demand holding times can be exploited for energy efficient traffic grooming in optical networks. We present an optimal formulation for minimizing the energy consumption...
An Efficient Partial Link Monitoring Scheme for Inter-Domain Routing Under Dynamic Traffic Scenarios
Efficient Partial Link Monitoring Scheme Inter-Domain Routing Under Dynamic Traffic Scenarios
2015/5/25
We investigate link-state advertising in multi-domain networks with dynamic traffic. A novel triggering scheme is proposed to monitor a subset of domain links, and thereby achieve a balance between sa...