Results 31 to 40 of about 6,247 (204)

Pointing error compensation of electro-optical detection systems using Gaussian process regression

International Journal of Metrology and Quality Engineering, 2021
Pointing accuracy is an important indicator for electro-optical detection systems, as it significantly affects the system performance. However, as a result of misalignment, nonperpendicularity in the manufacturing and assembly processes, as well as the ...
Tang Qijian, Yang Qingping, Wang Xiangjun, Forbes Alistair B.   +3 more
doaj   +1 more source

Imaging with two-axis micromirrors [PDF]

, 2006
We demonstrate a means of creating a digital image by using a two axis tilt micromirror to scan a scene. For each different orientation we extract a single grayscale value from the mirror and combine them to form a single composite image. This allows one
Hicks, R. Andrew, Kurzweg, Timothy P., Nasis, Vasileios T.   +2 more
core   +3 more sources

GaAs MOEMS Technology [PDF]

, 2003
Many MEMS-based components require optical monitoring techniques using optoelectronic devices for converting mechanical position information into useful electronic signals. While the constituent piece-parts of such hybrid opto-MEMS components can be separately optimized, the resulting component performance, size, ruggedness and cost are substantially ...
Spahn, Olga B., Grossetete, Grant D., Cich, Michael J., Tigges, Chris P., Reno, John L., Peake, Gregory M., Klem, John F., Lean, Jen, Fuller, Charles T., Burkhart, Jeff, Bauer, Thomas, Sullivan, Charles T.   +11 more
openaire   +2 more sources

A Theoretical Study on Mid-Infrared Difference Frequency Generation Based on Periodically Poled Thin-Film LiNbO₃

Photonics, 2023
A mid-infrared difference frequency generator (DFG) based on a periodically poled thin-film lithium niobate rib waveguide on a sapphire substrate is theoretically studied.
Runze Jia, Meihong Liu, Jiamin Liu, Pingrang Hua, Delong Zhang   +4 more
doaj   +1 more source

Use of scanned detection in optical position encoders [PDF]

, 2004
Published ...
Kushner, PJ, Roberts, DA, Yeatman, EM
core   +1 more source

X-Cut Lithium Niobate Optical Waveguide with High-Index Contrast and Low Loss Fabricated by Vapor Proton Exchange

Photonics, 2023
Highly integrated and stable devices are appealing in optical communication and sensing. This appeal arises from the presence of high refractive index contrast and high-quality waveguides.
Shicheng Rong, Xujie Wen, Ning Ding, Jia Liao, Pingrang Hua   +4 more
doaj   +1 more source

Polymer MOEMS Accelerometer

Procedia Engineering, 2012
AbstractIn this paper, a novel polymer MOEMS (Micro-Opto-Electro-Mechanical Systems) accelerometer is reported on. Low cost, photopatternable epoxies, EpoClad and EpoCore, are UV exposed by lithography to form this accelerometer in a simple and robust fabrication process.
Guan, T., Ceyssens, F., Puers, R.
openaire   +1 more source

Static temperature analysis and compensation of MEMS gyroscopes

International Journal of Metrology and Quality Engineering, 2013
MEMS gyroscopes as a kind of angular rate sensor have been widely used, but their accuracy tends to be low in practical applications, especially under temperature influence, and they generally require error compensation.
Tang Q.J., Wang X.J., Yang Q.P., Liu C.Z.   +3 more
doaj   +1 more source

Pyramidal micromirrors for microsystems and atom chips [PDF]

, 2005
Concave pyramids are created in the (100) surface of a silicon wafer by anisotropic etching in potassium hydroxide. High quality micromirrors are then formed by sputtering gold onto the smooth silicon (111) faces of the pyramids. These mirrors show great
Beckmann P., C. Gollasch, E. A. Curtis, E. A. Hinds, F. Ramirez-Martinez, G. Vijaya Prakash, J. J. Baumberg, J. P. Ashmore, M. Kraft, M. Trupke, S. Eriksson, Z. Moktadir   +11 more
core   +2 more sources

Exciton decay dynamics in individual carbon nanotubes at room temperature [PDF]

, 2008
We studied the exciton decay dynamics of individual semiconducting single-walled carbon nanotubes at room temperature using time-resolved photoluminescence spectroscopy.
Allegrini, Maria, Araujo, Paulo T., Gokus, Tobias, Green, Alexander A., Hartschuh, Achim, Harutyunyan, Hayk, Hennrich, Frank, Hersam, Mark C., Jorio, Ado, Kappes, Manfred   +9 more
core   +2 more sources