Advances in wide-bandgap-semiconductor-based photocathode devices for low-light-level applications

2003 ◽  
Author(s):  
Melville P. Ulmer ◽  
Bruce W. Wessels ◽  
Oswald H. W. Siegmund
Keyword(s):  
Light Level ◽  
Wide Bandgap ◽  
Low Light ◽  
Wide Bandgap Semiconductor

Advances in wide-bandgap semiconductor based photocathode devices for low light level applications

2003 ◽  
Author(s):  
Melville P. Ulmer ◽  
Bruce W. Wessels ◽  
Bing Han ◽  
Joel Gregie ◽  
Anton Tremsin ◽  
...  
Keyword(s):  
Light Level ◽  
Wide Bandgap ◽  
Low Light ◽  
Wide Bandgap Semiconductor

Software pattern recognition applied to nanodiffraction patterns from a STEM instrument

1986 ◽  
Vol 44 ◽  
pp. 694-695
Author(s):  
G.Y. Fan ◽  
J.M. Cowley
Keyword(s):  
Image Processing ◽  
Pattern Recognition ◽  
Computer Software ◽  
Processing System ◽  
Light Level ◽  
Host Computer ◽  
Low Light ◽  
Image Processing System ◽  
Recent Developments ◽  
On Line

In recent developments, the ASU HB5 has been modified so that the timing, positioning, and scanning of the finely focused electron probe can be entirely controlled by a host computer. This made the asynchronized handshake possible between the HB5 STEM and the image processing system which consists of host computer (PDP 11/34), DeAnza image processor (IP 5000) which is interfaced with a low-light level TV camera, array processor (AP 400) and various peripheral devices. This greatly facilitates the pattern recognition technique initiated by Monosmith and Cowley. Software called NANHB5 is under development which, instead of employing a set of photo-diodes to detect strong spots on a TV screen, uses various software techniques including on-line fast Fourier transform (FFT) to recognize patterns of greater complexity, taking advantage of the sophistication of our image processing system and the flexibility of computer software.

Low-light-level three-dimensional video microscope with long working distance objective lenses

1994 ◽  
Vol 52 ◽  
pp. 226-227
Author(s):  
W. Lin ◽  
J. Gregorio ◽  
T.J. Holmes ◽  
D. H. Szarowski ◽  
J.N. Turner
Keyword(s):  
Three Dimensional ◽  
Light Level ◽  
Stereo Pair ◽  
Light Illumination ◽  
Initial Image ◽  
Low Light ◽  
Image Recording ◽  
Depth Discrimination ◽  
Video Microscope ◽  
Working Distance

A low-light level video microscope with long working distance objective lenses has been built as part of our integrated three-dimensional (3-D) light microscopy workstation (Fig. 1). It allows the observation of living specimens under sufficiently low light illumination that no significant photobleaching or alternation of specimen physiology is produced. The improved image quality, depth discrimination and 3-D reconstruction provides a versatile intermediate resolution system that replaces the commonly used dissection microscope for initial image recording and positioning of microelectrodes for neurobiology. A 3-D image is displayed on-line to guide the execution of complex experiments. An image composed of 40 optical sections requires 7 minutes to process and display a stereo pair.The low-light level video microscope utilizes long working distance objective lenses from Mitutoyo (10X, 0.28NA, 37 mm working distance; 20X, 0.42NA, 20 mm working distance; 50X, 0.42NA, 20 mm working distance). They provide enough working distance to allow the placement of microelectrodes in the specimen.

Interface-engineered barium magnetoplumbite–wide-bandgap semiconductor integration enabling 5G system-on-wafer solutions for full-duplexing phased arrays

2021 ◽  
Vol 119 (5) ◽  
pp. 051906
Author(s):  
C. Yu ◽  
P. Andalib ◽  
A. Sokolov ◽  
O. Fitchorova ◽  
W. Liang ◽  
...  
Keyword(s):  
Phased Arrays ◽  
Wide Bandgap ◽  
Wide Bandgap Semiconductor

Self‐Confined Growth of Ultrathin 2D Nonlayered Wide‐Bandgap Semiconductor CuBr Flakes

2019 ◽  
Vol 31 (36) ◽  
pp. 1903580 ◽  
Author(s):  
Chuanhui Gong ◽  
Junwei Chu ◽  
Chujun Yin ◽  
Chaoyi Yan ◽  
Xiaozong Hu ◽  
...  
Keyword(s):  
Wide Bandgap ◽  
Wide Bandgap Semiconductor ◽  
Confined Growth

Theory and experiment study on low-light-level (LLL) image by topology mode filters

1998 ◽  
Author(s):  
Lianfa Bai ◽  
Qian Chen ◽  
Dekui Yin ◽  
Baomin Zhang
Keyword(s):  
Light Level ◽  
Experiment Study ◽  
Low Light ◽  
Theory And Experiment

Ferromagnetism of wide-bandgap semiconductor surfaces: Mg-doped AlN

2015 ◽  
Vol 54 (11) ◽  
pp. 110302 ◽  
Author(s):  
Sandhya Chintalapati ◽  
Yongqing Cai ◽  
Ming Yang ◽  
Lei Shen ◽  
Yuan Ping Feng
Keyword(s):  
Wide Bandgap ◽  
Semiconductor Surfaces ◽  
Wide Bandgap Semiconductor ◽  
Mg Doped
Sign in / Sign up

Export Citation Format

Share Document