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Preparation of anatase, rutile and brookite type anion doped titania photocatalyst nanoparticles and thin films 会议论文
2nd International Symposium on Functional Materials, Hangzhou, PEOPLES R CHINA, MAY 16-19, 2007
作者:  Yin, S;  Ihara, K;  Liu, B;  Wang, YH;  Li, RX
收藏  |  浏览/下载：4/0  |  提交时间：2015/07/31
射频溅射制备氧化镍电致变色薄膜的研究 会议论文
第六届中国功能材料及其应用学术会议
作者:  刘化然;  阎刚印;  刘芳;  盛英卓;  冯博学
收藏  |  浏览/下载：2/0  |  提交时间：2015/06/25
硫掺杂ZnO纳米线的电化学制备及发光特性 会议论文
第十六届全国半导体物理学术会议
作者:  王秀华;  常鹏;  陈溶波;  尹小丽;  刘肃
收藏  |  浏览/下载：3/0  |  提交时间：2015/06/24
退火对Pb辐照Al_2O_3单晶发光特性的影响 会议论文
第11届全国发光学学术会议
作者:  宋银;  谢二庆;  王志光;  张崇宏;  姚存峰
收藏  |  浏览/下载：4/0  |  提交时间：2015/06/25
Structural modification of C-doped SiO2 induced by swift heavy ion irradiations 会议论文
作者:  Wang, Z. G.;  Zhao, Z. M.;  Benyagoub, A.;  Toulemonde, M.;  Levesque, F.
收藏  |  浏览/下载：17/0  |  提交时间：2018/08/20
An Enhanced Adaptive Set-Membership Filter for Nonlinear Ellipsoidal Estimation 会议论文
American Control Conference 2007, New York, NY, July 9-13, 2007
作者:  Zhou B(周波);  Han JD(韩建达);  Liu GJ(刘光军)
收藏  |  浏览/下载：11/0  |  提交时间：2012/06/06
Autonomous control of a shape-shifting robot in urban terrain 会议论文
IEEE International Workshop on Safety, Security and Rescue Robotics, Rome, ITALY, September 27-29, 2007
作者:  Li B(李斌);  Ma SG(马书根);  Liu JG(刘金国);  Wang YC(王越超)
收藏  |  浏览/下载：11/0  |  提交时间：2012/06/06
High power VCSEL device with periodic gain active region - art. no. 67820O 会议论文
2007
Ning Y.; Qin L.; Sun Y.; Li T.; Cui J.; Peng B.; Liu G.; Zhang Y.; Liu Y.; Wang L.; Cui D.; Xu Z.
收藏  |  浏览/下载：7/0  |  提交时间：2013/03/28
High power VCSEL device with periodic gain active region (EI CONFERENCE) 会议论文
Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China
Ning Y. Q.; Qin L.; Sun Y. F.; Li T.; Cui J. J.; Peng B.; Liu G. Y.; Zhang Y.; Liu Y.; Wang L. J.; Cui D. F.; Xu Z. Y.
收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25
High power vertical cavity surface emitting lasers with large aperture have been fabricated through improving passivation  lateral oxidation and heat dissipation techniques. Different from conventional three quantum well structure  a periodic gain active region with nine quantum wells was incorporated into the VCSEL structure  with which high efficiency and high power operation were expected. The nine quantum wells were divided into three groups with each of them located at the antinodes of the cavity to enhance the coupling between the optical field and the gain region. Large aperture and bottom-emitting configuration was used to improve the beam quality and the heat dissipation. A maximum output power of 1.4W was demonstrated at CW operation for a 400m-diameter device. The lasing wavelength shifted to 995.5nm with a FWHM of 2nm at a current of 4.8A due to the internal heating and the absence of active water cooling. A ring-shape farfield pattern was induced by the non-homogeneous lateral current distribution in large diameter device. The light intensity at the center of the ring increased with increasing current. A symmetric round light spot at the center and single transverse mode operation with a divergence angle of 16 were observed with current beyond 4.8A.  

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