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北京大学 [8]
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期刊论文 [18]
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Laser cleaning of neutral attenuator plate based on low power laser diode (EI CONFERENCE)
会议论文
2nd International Conference on Energy, Environment and Sustainable Development, EESD 2012, October 12, 2012 - October 14, 2012, Jilin, China
Gan X.
;
Chen Y.
;
Li L.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
Laser cleaning is a non-contact
green and environmental cleaning method
which can effectively remove particulate contaminations of sizes as small as 0.1 m without damage to the optics. But most laser cleaning devices are large and heavy
also expensive due to using large lasers such as CO2 laser
YAG Laser etc. In this work a low power LD was tried to clean fingerprint and dust contaminated on the surface of the attenuator glasses plates. In the laser cleaning experiment with low power diode the fingerprint grease can be efficient to be cleaned
but there is no evident effect for cleaning inorganic dust. The cleaning different degree of fingerprint contaminations was investigated at the variable laser parameters
including laser power and irradiation time. An optical microscope was used to analyze the cleaning effect. The results show that low power LD can effectively remove the fingerprint on the surface of absorptive-type attenuator glass plates. On the premise that the attenuator optics glasses are not damaged
the cleaning area increases with the increase of radiation time and laser power. The cleaning area doesn't change much with the variation of laser frequency when the other parameters are the same. (2013) Trans Tech Publications
Switzerland.
Continuous-wave cavity ring-down evanescent-field sensing with a broadband source based on frequency-shifted interferometry
期刊论文
Sensors and Actuators, B: Chemical, 2013, 卷号: 184, 页码: 150-155
作者:
Ye, Fei*
;
Zhou, Ciming
;
Qi, Bing
;
Qian, Li
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2019/12/04
CRD
cavity ring-down
FSI
frequency-shifted interferometry
FSI–CRD
frequency-shifted interferometry cavity ring-down
RDC
ring-down cavity
CW
continuous-wave
RI
refractive index
FT
Fourier transform
PS-CRD
phase-shift cavity ring-down
FT-CRD
Fourier transform cavity ring-down
AOM
acousto-optic modulator
ASE
amplified spontaneous emission
VOA
variable optical attenuator
BD
balanced detector
DAQ
data acquisition card
HF
hydrofluoric acid
SEM
scanning electron microscopy
NaCl
sodium chloride
RIU
refractive index unit
IUPAC
International Union of Pure and Applied Chemistry
Fiber-optic sensor
Cavity ring-down
Evanescent field sensing
Absorption
Refractive index measurement
1 x 8 MEMS FLEXIBLE INTEGRATED OPTICAL DEVICE FOR OPTICAL FIBER-BASED NETWORKING APPLICATIONS
期刊论文
microwave and optical technology letters, 2013
Chen, Qinghua
;
Chen, Yingjun
;
Wu, Wengang
;
Li, Yanmei
;
Li, Li
;
Yan, Guizhen
;
Hao, Yilong
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/12
flexible integration
MEMS
optical switching
variable optical attenuating
optic fiber communication
ATTENUATOR
FABRICATION
DESIGN
SWITCHES
Near infrared electrochromic variable optical attenuator fabricated by layer-by-layer assembly
期刊论文
CHINESE JOURNAL OF POLYMER SCIENCE, 2011, 卷号: 29, 期号: 1, 页码: 117-123
作者:
Zheng, Jia
;
Zheng, Yi-jun
;
Wan, Xin-hua
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2019/04/09
Electrochromic Variable Optical Attenuator
Near Infrared Electrochroism
Layer-by-layer Assembly
Poly(Diallyldimethylammonium) Chloride
Disodium n
N-bis(P-sulfonatophenyl)Naphthalenedicarboximide
Near infrared electrochromic variable optical attenuator fabricated by layer-by-layer assembly
期刊论文
高分子科学英文版, 2011
Zheng, Jia
;
Zheng, Yi-jun
;
Wan, Xin-hua
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2015/11/10
Electrochromic variable optical attenuator
Near infrared electrochroism
Layer-by-layer assembly
Disodium N,N-bis(p-sulfonatophenyl)naphthalenedicarboximide
Poly(diallyldimethylammonium) chloride
ULTRATHIN FILMS
PI-STACKS
POLYMERS
COMPLEX
CONDUCTIVITY
DEPOSITION
DEVICES
SURFACE
REGION
Liquid crystal modulator with ultra-wide dynamic range and adjustable driving voltage
期刊论文
2010, 2010
Wang, Xing-jun
;
Huang, Zhang-di
;
Feng, Jing
;
Chen, Xiang-fei
;
Liang, Xiao
;
Lu, Yan-qing
收藏
  |  
浏览/下载:3/0
Bending effect on fiber acousto-optic mode coupling
期刊论文
2010, 2010
Zhao, JH
;
Liu, XM
;
Wang, Y
;
Luo, Y
收藏
  |  
浏览/下载:1/0
Near-infrared electrochromic and chiroptical switching polymers: synthesis and characterization of helical poly(N-propargylamides) carrying anthraquinone imide moieties in side chains
期刊论文
材料化学杂志, 2010
Zheng, Yijun
;
Cui, Jiaxi
;
Zheng, Jia
;
Wan, Xinhua
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/10
COUPLED CIRCULAR-DICHROISM
VARIABLE OPTICAL ATTENUATOR
CHIRAL POLYISOCYANATES
ROTATORY DISPERSION
MOLECULAR SWITCHES
LIQUID-CRYSTAL
MAIN-CHAIN
PI-STACKS
POLYACETYLENES
INVERSION
Design and Performance of MEMS Multifunction Optical Device Using a Combined In-Plane and Out-of-Plane Motion of Dual-Slope Mirror
期刊论文
journal of lightwave technology, 2010
Chen, Q. H.
;
Wu, W. G.
;
Wang, Z. Q.
;
Yan, G. Z.
;
Hao, Y. L.
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2015/11/10
Microelectromechanical systems (MEMS)
multifunctional device
optical power splitter
optical switch (OS)
variable optical attenuator (VOA)
ATTENUATOR
FABRICATION
NETWORKS
SWITCHES
Optical design and performance of a novel multifunction optical device
期刊论文
microwave and optical technology letters, 2008
Chen, Q. H.
;
Wu, W. G.
;
Wang, Z. Q.
;
Yan, G. Z.
;
Hao, Y. L.
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2015/11/10
multifunction
optical power splitting
optical switching
variable optical attenuating
optic fiber communication
MEMS
ATTENUATOR
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