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作者:Qi Zhang , Lingke Jiang , Linbing Pan ...
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (5), pp.055102-055102SPIE
摘要:A bandwidth reconfigurable and passband switchable filter is proposed and experimentally demonstrated. Based on the same structure, the filter can realize a single broadened response, two passbands with tunable bandwidth or multiband filter. A single broadened response adopts bin...
作者:Dimitrios Christaras , Alexandros Pennos , Harilaos Ginis ...
来源:[J].Journal of Biomedical Optics(IF 2.881), 2018, Vol.23 (5), pp.056001-056001SPIE
摘要:Fundus reflectometry is a common in-vivo , noninvasive method to estimate the macular pigment optical density (MPOD). The measured density, however, can be affected by the individual’s intraocular scattering. Scattering causes a reduction in the contrast of the fundus image,...
作者:Takashi Katagiri , Takahiro Suzuki , Yuji Matsuura
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (5), pp.054104-054104SPIE
摘要:For gas analysis systems based on terahertz time-domain spectroscopy (THz-TDS), relatively complex systems have been proposed to enhance the sensitivity to measure small amounts of gas. This paper proposes a simple system comprising a hollow optical fiber with an inner dielectric...
作者:Per Bergström , Michael Fergusson , Mikael Sjödahl
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (5), pp.053110-053110SPIE
摘要:A concept for targetless, computer-aided design (CAD)-based, close-range photogrammetry for online shape inspection is introduced. The shape of an object, which is arbitrarily located on a conveyor belt, is to be measured and compared with its nominal shape as defined by a CAD mo...
作者:Francesco Boschetto , Tetsuya Adachi , Satoshi Horiguchi ...
来源:[J].Journal of Biomedical Optics(IF 2.881), 2018, Vol.23 (5), pp.056002-056002SPIE
摘要:Staphylococcus epidermidis ( S. epidermidis ) is one of the leading nosocomial pathogens, particularly associated with periprosthetic infections of biomedical implants. Silicon nitride (Si3N4), a nonoxide biomaterial widely used in spinal implants, has ...
作者:Xiaohong Sun , Han Wang , Bin Liu ...
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (5), pp.051503-051503SPIE
摘要:This work proposes to measure the topography of microstructure surfaces using a self-mixing interference (SMI) configuration. The theoretical measurement model is built using beam-expanded plane wave method and considering SMI effect. The interference patterns for different objec...
作者:Chunxiao Zhang , Chongbin Xu , Gaojin Wen ...
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (5), pp.053109-053109SPIE
摘要:The solar-blind ultraviolet (UV) and visible (VIS) imaging system provides a valuable tool for search and rescue missions. However, due to atmospheric scattering and absorption effects, the UV images are significantly degraded, even missing the target in some frames. A framework ...
作者:Sijun Liang , Zhiyun Hou , Guiyao Zhou ...
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (5), pp.057106-057106SPIE
摘要:We demonstrate the broadband stimulated emission generation in the Er3 + / Tm3 + / Ho3 + codoped optical fiber rod (ETHOFR). The absorption spectra, broadband emission, energy level, electron transition process, and optical stimulated emis...
作者:Devin O’Kelly , Heling Zhou , Ralph P. Mason
来源:[J].Journal of Biomedical Optics(IF 2.881), 2018, Vol.23 (5), pp.056011-056011SPIE
摘要:Physiological monitoring is a critical aspect of in vivo experimentation, particularly imaging studies. Physiological monitoring facilitates gated acquisition of imaging data and more robust experimental interpretation but has historically required additional instrumentation that...
作者:Yingwei Li , Haibing Zhang , Meiling Yu ...
来源:[J].Journal of Biomedical Optics(IF 2.881), 2018, Vol.23 (5), pp.057001-057001SPIE
摘要:This study investigated the relationships of systemic low-frequency oscillations (sLFOs) measured at different peripheral sites in resting state, during passive leg raising (PLR), and during a paced breathing (PB) test. Twenty-five healthy subjects (21 to 57 years old; males: 13 ...

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