Browsing by Issue Date, starting with "2016-04-18"

Now showing 1 - 20 of 17500

Exploring transverse pattern formation in a dual-polarization self-mode-locked monolithic Yb: KGW laser and generating a 25-GHz subpicosecond vortex beam via gain competition
(2016-04-18)
Chang, M. T.
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Liang, H. C.
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Su, K. W.
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Chen, Y. F.
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電子物理學系
Formation of transverse modes in a dual-polarization self-mode-locked monolithic Yb: KGW laser under high-power pumping is thoroughly explored. It is experimentally observed that the polarization-resolved transverse patterns are considerably affected by the pump location in the transverse plane of the gain medium. In contrast, the longitudinal self-mode-locking is nearly undisturbed by the pump position, even under the high-power pumping. Under central pumping, a vortex beam of the Laguerre-Gaussian LG(p,l) mode with p = 1 and l = 1 can be efficiently generated through the process of the gain competition with a subpicosecond pulse train at 25.3 GHz and the output power can be up to 1.45 W at a pump power of 10.0 W. Under off-center pumping, the symmetry breaking causes the transverse patterns to be dominated by the high-order Hermite-Gaussian modes. Numerical analyses are further performed to manifest the symmetry breaking induced by the off-center pumping. (C) 2016 Optical Society of America
Dual layer electrode liquid crystal lens for 2D/3D tunable endoscopy imaging system
(2016-04-18)
Hassanfiroozi, Amir
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Huang, Yi-Pai
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Javidi, Bahram
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Shieh, Han-Ping D.
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光電工程學系
In this paper, we demonstrate a multi-functional liquid-crystal lens (MFLC-lens) based on dual-layer electrode design. Compared with the previous 3D endoscopes, which use double fixed lens capturing, the proposed LC lens is not only switchable between 2D and 3D modes, but also is able to adjust focus in both modes. The diameter of the MFLC-lens is only 1.42mm, which is much smaller than the available 3D endoscopes with double fixed lenses. To achieve the MFLC-lens, a high-resistance layer needs to be coated on the electrode to generate an ideal gradient electric-field distribution, which can induce a lens-like form of LC molecules. The parameters of high-resistive layer are investigated and discussed with an aim to optimize the performance of the MFLC-lens. (C) 2016 Optical Society of America
交大e-News第207期-交大挾雙甲馳騁躍竹風
(2016-04-20)
國立交通大學秘書室
;
Secretariat
Self-built labware stimulates creativity
(2016-04-21)
Urban, Pawel
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交大名義發表
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National Chiao Tung University
Anisotropic power-law solutions for a supersymmetry Dirac-Born-Infeld theory
(2016-04-21)
Do, Tuan Q.
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Kao, W. F.
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物理研究所
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Institute of Physics
A new set of Bianchi type I power-law expanding solutions is obtained for a supersymmetric Dirac-Born-Infeld (SDBI) theory coupled to a gauge field. Stability analysis is also performed to show that this set of power-law expanding solutions is stable. In particular, this set of power-law solutions provides an explicit example to the role played by the supersymmetry correction term. We also show by a general approach that any stable anisotropic solution of SDBI model will turn unstable when a phantom field is introduced. We also show that the result of the scalar perturbation indicates that the SDBI model is a realistic model.
New measurement of theta(13) via neutron capture on hydrogen at Daya Bay
(2016-04-21)
An, F. P.
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Balantekin, A. B.
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Band, H. R.
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Bishai, M.
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Blyth, S.
This article reports an improved independent measurement of neutrino mixing angle theta(13) at the Daya Bay Reactor Neutrino Experiment. Electron antineutrinos were identified by inverse beta-decays with the emitted neutron captured by hydrogen, yielding a data set with principally distinct uncertainties from that with neutrons captured by gadolinium. With the final two of eight antineutrino detectors installed, this study used 621 days of data including the previously reported 217-day data set with six detectors. The dominant statistical uncertainty was reduced by 49%. Intensive studies of the cosmogenic muon-induced Li-9 and fast neutron backgrounds and the neutron-capture energy selection efficiency, resulted in a reduction of the systematic uncertainty by 26%. The deficit in the detected number of antineutrinos at the far detectors relative to the expected number based on the near detectors yielded sin(2)2 theta(13) = 0.071 +/- 0.011 in the three-neutrino-oscillation framework. The combination of this result with the gadolinium-capture result is also reported.
微疼　微不幸逐夢
(2016-04-24)
蔡佳珊
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Department of Communication and Technology
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傳播與科技學系
近年來，圖文作家爭相在網路上展現自己的創作，微疼正是其中之一，但成為圖文作家的路途卻十分艱辛。
色彩體型穿搭學
(2016-04-24)
羅宛君
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Department of Communication and Technology
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傳播與科技學系
凸顯自己的優點，並且與色彩搭配，穿出自己。
樂進未來　流行樂十大課題
(2016-04-24)
吳和謙
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Department of Communication and Technology
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傳播與科技學系
《樂進未來——台灣流行音樂的十個關鍵課題》廣邀各界專家，探討流行音樂的十項重大議題。
文化新景象　街頭表演藝人
(2016-04-24)
吳偉立
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Department of Communication and Technology
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傳播與科技學系
以照片的方式記錄下街頭藝人的文化圈。
牆經濟　線上線下應用
(2016-04-24)
王聖安
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Department of Communication and Technology
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傳播與科技學系
只要一面牆、QR Code和能上網的智慧型手機，就能輕鬆完成購物，到底什麼是牆經濟？
後站春天　延續家鄉的味道
(2016-04-24)
翁世樺
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Department of Communication and Technology
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傳播與科技學系
桃園後火車站是許多外籍移工假日時休息放鬆的天堂，在這裡，他們找到了家鄉的味道。
最粗糙的手　最溫柔的心
(2016-04-24)
蔡家寧
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Department of Communication and Technology
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傳播與科技學系
雖然她聲音宏亮，動作豪邁，但對毛小孩來說，她，就是最溫柔的天使。
突破困境的光輝　盧勁軒
(2016-04-24)
黃吏玄
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Department of Communication and Technology
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傳播與科技學系
介紹身為同志、聽障與家暴受害者的盧勁軒，他的人生與奮鬥。
輸出新時代　數位微噴
(2016-04-24)
蕭泳
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Department of Communication and Technology
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傳播與科技學系
簡單介紹照片印刷從傳統攝影術至底片沖洗，而演變至現今數位微噴的演變。
總編輯的話
(2016-04-24)
胡浣莊
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Department of Communication and Technology
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傳播與科技學系
本期共有二十九篇稿件，以文字與照片為主，動畫四篇、新聞圖表四篇、影像三篇、廣播二篇、照片故事五篇。
美的實踐　穿洞藝術家
(2016-04-24)
吳偉立
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Department of Communication and Technology
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傳播與科技學系
藉由穿洞藝術，談論文化尊重的內涵。
生命新曲　音樂教育與治療
(2016-04-24)
徐義薇
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Department of Communication and Technology
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傳播與科技學系
音樂是造物者給人類的禮物，透過教育與治療，能改寫人的一生。
動畫製作過程
(2016-04-24)
梅瑞庭
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Department of Communication and Technology
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傳播與科技學系
以flash介紹動畫的製作過程。
浪浪　咖啡　中途之家
(2016-04-24)
鄭淇云
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蔡佳珊
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Department of Communication and Technology
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傳播與科技學系
一家結合中途之家的咖啡廳，讓愛不再流浪。