Paul R Medwell,Qing N Chan,Peter A M Kalt et al.
Paul R Medwell et al.
This work aims to advance understanding of the coupling between temperature and soot. The ability to image temperature using the two-line atomic fluorescence (TLAF) technique is demonstrated. Previous TLAF theory is extended from linear exc...
Analysis of the spectral and angular response of the vegetated surface polarization for the purpose of aerosol remote sensing over land [0.03%]
植被覆盖地表偏振光谱和角度响应分析及其在陆地气溶胶遥感中的应用
F Waquet,J-F Léon,B Cairns et al.
F Waquet et al.
A precise estimate of the polarization induced by the surface in reflected radiation is crucial for remote sensing applications dedicated to monitoring the atmosphere. Here we present airborne observations acquired during a field campaign i...
Yonghua Wu,Shuki Chaw,Barry Gross et al.
Yonghua Wu et al.
We analyze the potential of measuring low-altitude optically thin clouds with a Raman-elastic lidar in the daytime. Optical depths of low clouds are derived by two separate methods from nitrogen Raman and elastic-scattering returns. By corr...
Flashes of light below the dripping faucet: an optical signal from capillary oscillations of water drops [0.03%]
水滴毛细振荡的光学信号：滴答作响中的闪光
Thomas Timusk
Thomas Timusk
Falling water drops from a dripping faucet, illuminated from above, exhibit a row of bright strips of light, a few centimeters apart at a fixed distance below the faucet. Flash photographs of the drops show that they are oblate in shape whe...
Experimental assessment of the matched filter for laser guide star wavefront sensing [0.03%]
激光导星波前传感器匹配滤波器的实验评估
Rodolphe Conan,Olivier Lardière,Glen Herriot et al.
Rodolphe Conan et al.
Laser guide star wavefront sensing comes with several limitations. When imaged with a Shack-Hartmann wavefront sensor, the laser guide star is seen as extended sources elongated in the directions given by the lenslet locations and the laser...
Ivan Moreno,Ching-Cherng Sun,Rumen Ivanov
Ivan Moreno
In practice, any cluster of light-emitting diodes (LEDs) can be modeled or measured as a directional point source if the detector is far enough away from the cluster. We propose a far-zone condition for measuring or modeling propagation of ...
Sergei Nikitin,Charles Manka,Jacob Grun
Sergei Nikitin
We present results of the design and testing of a modified optical Šolc notch filter for use in the deep ultraviolet (DUV, 190-300 nm) spectral range. The filter was designed to block a specific wavelength in this region. In addition, a se...
Dong-Xue Wang,Ian T Ferguson,John A Buck
Dong-Xue Wang
A comprehensive optical model for dual wavelength LEDs is developed using optical ray tracing programs. Optical dispersion of GaN, InGaN, and AlGaN is also included in this numerical model. The light extraction efficiency of LEDs can be cal...
Holographic aperture ladar [0.03%]
全息孔径激光雷达
Bradley D Duncan,Matthew P Dierking
Bradley D Duncan
Holographic aperture ladar is a variant of synthetic aperture ladar that seeks to increase cross-range scene resolution by synthesizing a large effective aperture through the motion of a smaller receiver and through the subsequent proper ph...
Iterative least square phase-measuring method that tolerates extended finite bandwidth illumination [0.03%]
一种能够容忍宽光谱照明的迭代最小二乘相移测量方法
Florin Munteanu,Joanna Schmit
Florin Munteanu
Iterative least square phase-measuring techniques address the phase-shifting interferometry issue of sensitivity to vibrations and scanner nonlinearity. In these techniques the wavefront phase and phase steps are determined simultaneously f...