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	Proactive regulation of axial crushing behavior of thin-walled circular tube by gradient grooves 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2016, 卷号: 108, 页码: 49-60 作者: Wei YP(魏延鹏); Yang Z; Yan H; Guo YC; Wu XQ(吴先前) 收藏 \| 浏览/下载：25/0 \| 提交时间：2016/09/14 Gradient Grooved Tube (Ggt) Proactive Regulation Progressive Buckling Half Wavelength Sectionalized Crushing Force
	Design of an S-Band HTS Filter With High Power Capability 期刊论文 OAI收割 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2013, 卷号: 23, 期号: 6 Bai, DD; He, XF; Zhang, XQ; Li, H; Zhang, Q; Li, CG; He, YS 收藏 \| 浏览/下载：21/0 \| 提交时间：2014/01/16 High power high-temperature superconducting (HTS) filter straight-line half-wavelength resonator
	Athermal design of hybrid refractive/harmonic diffractive optical system for far-infrared multi-band (EI CONFERENCE) 会议论文 OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China 作者: Liu Y.; Liu Y.; Zhang H.; Zhang H.; Sun Q. 收藏 \| 浏览/下载：33/0 \| 提交时间：2013/03/25 In order to get enough information about the target avoid big chromatic aberration as a result of wide spectrum and the complexity of optical system and adapt different special environment temperature a hybrid refractive/harmonic diffractive optical system in far-infrared multi-band is described in the paper. This diffractive optical system has been designed an athermalized multi-band imaging system with harmonic diffractive element in 15-50m spectrum based on larger 1dispersion capability and particular thermal dispersive power of harmonic diffractive element. Then at the temperature range from 0C to 40C this design can simultaneously meet with all requirements of the imaging system in five harmonic wave bands including15.8-16.2m 18.5-20m 23-25m 30.5-33.5m and 46-50m. In each harmonic wave band the magnification changes as a function of wavelength which creates image registration error. To compensate this shortcoming a zoom optical system is designed with three lenses by means of optical two- component method. The design results show that the hybrid refractive/harmonic diffractive optical system can realize athermalized and achromatic design and the zoom optical system makes half image height at 3.53mm in every harmonic wave band and still realizes aberration compensation action. In the five harmonic wave bands each optical transfer function approaches the diffraction limit at ambient temperature range of 0C to 40C. Finally the system realizes the requirements of portability mini-type and ease for fabrication. 2009 SPIE.
	Optimization of multi-cycle two-color laser fields for the generation of an isolated attosecond pulse 期刊论文 OAI收割 opt. express, 2008, 卷号: 16, 期号: 14, 页码: 10331, 10340 Kim Byunghoon; Ahn Jungkwen; Yu Yongli; 程亚; 徐至展; Kim Dong Eon 收藏 \| 浏览/下载：1093/55 \| 提交时间：2009/09/18 America Attosecond pulses Full Width Half Maximum (FWHM) FWHM pulse Main color Mixing ratios Multi-cycle Optical (PET) (OPET) Optimal wavelength Pulse duration (PD) Shorter wavelengths Two color laser fields Two-color Two-dimensional (2D) map
	Sub-half-wavelength atom localization via two standing-wave fields 期刊论文 OAI收割 j. phys. b-at. mol. opt. phys., 2008, 卷号: 41, 期号: 8, 页码: 85508 Jin Luling; 孙辉; 钮月萍; 龚尚庆收藏 \| 浏览/下载：909/31 \| 提交时间：2009/09/18 Atom localization Standing-wave fields Sub-half-wavelength
	Low drive-voltage and high-bandwidth electro-optic modulators based on BaTiO3 thin-film waveguides (EI CONFERENCE) 会议论文 OAI收割 Science and Technology of Dielectrics for Active and Passive Photonic Devices - 210th Electrochemical Society Meeting, October 29, 2006 - November 3, 2006, Cancun, Mexico Sun D. G.; Fu X. H.; Liu Z. F.; Ho S. T.; Wessels B. W. 收藏 \| 浏览/下载：45/0 \| 提交时间：2013/03/25 We investigated electro-optic modulator structures to target low drive voltage high-speed modulation and small device size with c-axis grown BaTiO3/MgO ferro-electric thin films. In this study the calculations are focused on the ideal thin film with a quadratic relation between the half-wave drive voltage V and the interaction length L in the electro-optic modulation case we obtained in previous work. With the quadratic electro-optic modulating relation and the optimal rib waveguide structure of BaTiO3/MgO thin films the frequency-voltage-size performances for 2.5GHz 10GHz 40GHz and 100GHz modulation bandwidths have been obtained under half-wave drive voltages of 0.8V 1.6V 3.0V and 4.8V respectively for the ideal film with r51=730 pm/V at 1550nm wavelength where both the phase velocity matching condition and the conductor induced microwave attenuation are considered. The required device lengths to achieve these four typical values of modulation bandwidth are 3.3 mm 0.8 mm 0.4 mm and 0.2 mm respectively. With the c-axis grown BaTiO3/MgO crystal thin films and the quadratic electro-optic modulating relation an electro-optic coefficient of reff=180 pm/V for the c-axis grown BaTiO3/MgO ferro-electric thin films was measured which is relatively far from the ideal value of r51=560 pm/V. copyright The Electrochemical Society.
	High-power InGaAs/GaAs VCSEL's two-dimension arrays (EI CONFERENCE) 会议论文 OAI收割 ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China 作者: Liu Y.; Wang L.-J.; Wang L.-J.; Liu Y.; Liu Y. 收藏 \| 浏览/下载：26/0 \| 提交时间：2013/03/25 Selectively oxidized InGaAs/GaAs vertical -cavity surface-emitting lasers (VCSEL) array at an emission wavelength of 980nm was reported. A 16 elements array with 200m aperture size (250m center spacing) of individual elements shows a CW output power of 1.21 W at room temperature resulting in 1 KW/cm2 average optical power density. The device threshold current is 1.32A The lasing peak wavelength is 981.9 nm the full width at half-maximum is 0.7 nm and the far-field divergence angle is about 17.The characteristics of a single device with a active region diameter of 800m is compared with that of a 2-D array with active region diameter of individual clement of 200m. These two kinds of devices have the same total lasing area. At the same current injection the single device has a higher threshold and a higher output power than the array. The red shift of single device is more obvious than that of the array's.