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西安交通大学 [5]
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会议论文 [29]
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Broadband asymmetric acoustic transmission based on an acoustic prism and absorptive material
会议论文
作者:
Song, Ailing
;
Chen, Tianning
;
Wang, Xiaopeng
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2019/11/26
Absorptive materials
Acoustic propagation
Acoustic transmission
Broad frequency range
Complicated structures
Propagation direction
Sound intensity distribution
Sound pressure field
Improvement of an UGW-based Track Circuit for Operation on Repaired Railway Sections
会议论文
2017 IEEE 17TH INTERNATIONAL CONFERENCE ON UBIQUITOUS WIRELESS BROADBAND (ICUWB), 2017-01-01
作者:
Yuan, Lei
;
Yang, Yuan
;
Hernandez, Alvaro
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2019/12/20
Ultrasonic guided waves (LTGR)
track circuit
encoded transmission
Kasami sequences
Extraordinary optical transmission through wedge-shape metallic slits array embedded with rectangular cavities
会议论文
Beijing, China, June 4, 2017 - June 6, 2017
作者:
Qi, Yunping
;
Zhang, Xuewei
;
Hu, Yue
;
Nan, Xianghong
;
Wang, Xiangxian
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2020/11/15
Cavity resonators
Electromagnetic wave polarization
Finite element method
Light
Metallic films
Metals
Physical optics
Red Shift
Surface plasmons
Thin films
Enhanced optical transmission
Extraordinary optical transmission
Long-wavelength-range
Metallic slits
Optical signal transmission
Surface plasmon polaritons
Transmission capability
Transmission line modeling
Extraordinary Optical Transmission through Wedge-shape metallic slits array embedded with rectangular cavities
会议论文
作者:
Qi, Yunping
;
Zhang, Xuewei
;
Hu, Yue
;
Nan, Xianghong
;
Wang, Xiangxian
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2019/11/15
physical optics
extraordinary optical transmission
surface plasmon polaritons
wedge-shape metallic slits array
finite element method
A 60GHz RoF(radio-over-fiber) transmission system based on PM modulator
会议论文
semiconductor lasers and applications vii, beijing, china, 2016-10-12
作者:
Wang, Xin
;
Liu, Yi
;
Wang, Wen-Ting
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2017/03/22
Laser nano-manufacturing technology and applications towards optical functional nanostructures and devices
会议论文
Shanghai, China, June 28, 2015 - July 2, 2015
作者:
Zheng, Mei-Ling
;
Duan, Xuan-Ming
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2018/03/16
Advanced astigmatism-corrected tandem Wadsworth mounting for small-scale spectral broadband imaging spectrometer (EI CONFERENCE)
会议论文
Lei Y.
;
Lin G.-Y.
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  |  
浏览/下载:29/0
  |  
提交时间:2013/03/25
Tandem gratings of double-dispersion mount make it possible to design an imaging spectrometer for the weak light observation with high spatial resolution
high spectral resolution
and high optical transmission efficiency. The traditional tandem Wadsworth mounting is originally designed to match the coaxial telescope and large-scale imaging spectrometer. When it is used to connect the off-axis telescope such as off-axis parabolic mirror
it presents lower imaging quality than to connect the coaxial telescope. It may also introduce interference among the detector and the optical elements as it is applied to the short focal length and small-scale spectrometer in a close volume by satellite. An advanced tandem Wadsworth mounting has been investigated to deal with the situation. The Wadsworth astigmatism-corrected mounting condition for which is expressed as the distance between the second concave grating and the imaging plane is calculated. Then the optimum arrangement for the first plane grating and the second concave grating
which make the anterior Wadsworth condition fulfilling each wavelength
is analyzed by the geometric and first order differential calculation. These two arrangements comprise the advanced Wadsworth mounting condition. The spectral resolution has also been calculated by these conditions. An example designed by the optimum theory proves that the advanced tandem Wadsworth mounting performs excellently in spectral broadband. 2012 Optical Society of America.
Investigation on single-mode transmission of Terahertz wave triangle core photonic crystal fibers
会议论文
Beijing, China, November 12, 2013 - November 15, 2013
作者:
Yuan, Peng
;
Liu, Yanjun
;
Hou, Shanglin
;
Wang, Daobin
;
Lei, Jingli
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2020/11/15
Crystal whiskers
Cutoff frequency
Photonic crystal fibers
Photonics
Wave transmission
Air holes
Cladding air holes
Full vector finite element methods
Single mode
Single-mode transmission
Tera Hertz
Terahertz frequency range
Wideband CRLH-transmission line bandstop filter
会议论文
10th International Symposium on Antennas, Propagation and EM Theory (ISAPE), 中国
作者:
Song, Kaijun
;
Pan, Tao
;
Fan, Yong
;
Zhong, Cuilin
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2015/08/25
Study on spectrograph for ionosphere: A broadband imaging instrument prototype for far-ultraviolet (EI CONFERENCE)
会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yu L.
;
Wang S.-R.
;
Lin G.-Y.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
Current research on space-based exploration for the ionosphere needs more advanced technologies. Because the spectral signals in the ionosphere distributing basically in the far-ultraviolet waveband are very weak. Usual spectrometer structures and detectors such as CCD can't receive enough information. Based on this principle of atmospheric sounding
the imaging spectrometer prototype for ionosphere detection application was designed to solve the problem. This prototype consists of the telescope and the imaging spectrometer. The simple structure and small number of mirrors can help higher transmission efficiency be achieved and weak signals detection be implemented. The telescope is an off-axis parabolic mirror and the spectrometer is a modified Czerny-Turner spectral imaging system. Modified Czerny-Turner spectrometer contains a spherical mirror
a fixed plane grating and a toroidal mirror. By adjusting the incident angle to the collimating mirror and using toroidal mirror
coma and astigmatism were corrected well. We also optimize distances between the grating to the focusing mirror and the focusing mirror to the image plane to improve disadvantages of traditional Czerny-Turner structure. Designed results demonstrate that aberrations are substantially corrected
and high image quality can be obtained in broad waveband. The photon counting Wedge-Strip-Anode detector with micro-channel planes as the receiving plane is accepted for the instrument prototype. The other photon counting 2-D detector responding well for weak light such as Cross-Delay line detector and MAMA detector can also be used for detection. The calibration and performances testing system is made of a vacuum system
a deuterium lamp
a monochrometer and the instrument prototype. Results obtained from the experiment show that the spectral resolution is 2.4 nm and the spatial resolution is 80 m. The other calibration experiments are running. The technology of the spectrometer prototype is important for the research and applications of ionosphere remote sensing. 2011 SPIE.
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