国际光学工程学会
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作者:Lei Wang , Sikun Li ...
来源:[J].Journal of Micro/Nanolithography, MEMS, and MOEMS(IF 1.148), 2016, Vol.15 (1), pp.013506-013506SPIE
摘要:Source optimization is one of the key techniques for achieving higher resolution without increasing the complexity of mask design. An efficient source optimization approach is proposed on the basis of particle swarm optimization. The pixelated sources are encoded into particles, ...
作者:Lei Wang , Bugao Xu , Weidong Gao
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (2), pp.025103-025103SPIE
摘要:Yarn hairiness is one of the essential parameters for assessing yarn quality. Most of the currently used yarn measurement systems are based on two-dimensional (2-D) photoelectric measurements, which are likely to underestimate levels of yarn hairiness because hairy fibers on a ya...
作者:... Kui Li , Lei Wang , Jiaxin Gao
来源:[J].Optical Engineering(IF 0.88), 2017, Vol.56 (2), pp.024102-024102SPIE
摘要:In the fiber optic gyroscope (FOG) single-axis rotation inertial navigation system (SRINS), the Z -axis gyro drift ( ϵ z ) dramatically limits its navigation precision and the Z -axis gyro scale factor error ( δ K G z ) can cause greater navigation error because of the rotat...
作者:Lei Wang , Bifeng Zhu ...
来源:[J].Journal of Biomedical Optics(IF 2.881), 2018, Vol.23 (2), pp.026008-026008SPIE
摘要:We propose a wide-field absolute transverse blood flow velocity measurement method in vessel centerline based on absorption intensity fluctuation modulation effect. The difference between the light absorption capacities of red blood cells and background tissue under low-coherence...
作者:Lei Wang , Wei Wang ...
来源:[J].Optical Engineering(IF 0.88), 2014, Vol.53 (6), pp.064103-064103SPIE
摘要:A rotary inertial navigation system requires higher calibration accuracy of some error parameters owing to rotation. Conventional multiposition and rotation calibration methods are limited, for they do not consider sensors’ actual operating condition. In order to achieve the...
作者:Lei Wang , Chunqing Gao ...
来源:[J].Optical Engineering(IF 0.88), 2014, Vol.53 (6), pp.061603-061603SPIE
摘要:A resonantly pumped monolithic Ho:YAG nonplanar ring oscillator (NPRO) with single-frequency and dual-wavelength laser outputs is demonstrated. The Ho:YAG NPRO is resonantly pumped by a 1907-nm Tm:YLF laser. In single-frequency operation, the output power is 3.09 W, with a slope ...
作者:Lei Wang , Tao Sun , Gwanggil Jeon
来源:[J].Optical Engineering(IF 0.88), 2014, Vol.53 (7), pp.073103-073103SPIE
摘要:Reversible integer time-domain lapped transform (RTDLT) has been proven to be efficient in progressive lossy-to-lossless image compression. We introduced the quadtree-based RTDLT (QRTDLT) to further improve the performance of block-transform methods.Traditional block transfo...
作者:Lei Wang , Chong Liu ...
来源:[J].Journal of Micro/Nanolithography, MEMS, and MOEMS(IF 1.148), 2014, Vol.13 (3), pp.033008-033008SPIE
摘要:An external-integrated biomimetic micropump for a microfluidic system is demonstrated. An “artificial leaf” is constituted, which mimics the stomatal transpiration process in plants and utilizes the negative pressure generated to drive the fluid flow. The biomimetic micropum...
作者:Lei Wang , Ling Zhang
来源:[J].Optical Engineering(IF 0.88), 2015, Vol.54 (9), pp.096106-096106SPIE
摘要:We report a compact, 130-W single-stage master oscillator power amplifier with a high peak power of 51.3 kW and a narrow spectral linewidth of 0.1 nm. The seed source is a single-mode, passively mode-locked solid-state laser at 1064 nm with an average power of 2 W. At a repetitio...
作者:Lei Wang , Jun Geng
来源:[J].Journal of Applied Remote Sensing(IF 0.876), 2014, Vol.8 (1), pp.083517-083517SPIE
摘要:The existing hyperspectral vegetation indices used for estimating the canopy leaf area index (LAI) of winter wheat ( Triticum aestivum L. ) performed well, but the use of such indices at late growth stages can lead to inaccurate results. To improve the performance of LAI models f...

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