章若冰
个性化签名
- 姓名:章若冰
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学术头衔:
博士生导师
- 职称:-
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学科领域:
计算机应用
- 研究兴趣:
1943年3月生于湖北省武穴市。1965年毕业于吉林大学物理系理论物理专业。现为天津大学精密仪器与光电子工程学院教授,博士生导师。主要从事“激光物理”、“超快激光”、“超快非线性光学”研究工作。作为项目负责人和主要参加者先后完成了多项国家自然科学基金,教委博士点基金,国家七•五攻关、八•五攻关、国家攀登计划、国家重大基础研究(973)子课题及中国工程物理研究院基金等项目。曾获全国科学大会奖、天津市优秀科技成果二等奖、国家科技进步二等奖、国家教委科技进步一等奖,国家教委和国家教育部科技进步二等奖三项。在国内外发表学术论文60多篇并著有《激光物理导论》、《现代光学手册》等著作。
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396
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成果数
10
章若冰, 孙敬华, 胡有方, 张志刚, 王清月
物理学报,2002,51(6),-0001,():
-1年11月30日
运用四阶Runge-Kutta法直接求解非线性介质内椭圆高斯光束传播方程组的方法分析增益介质内的克尔透镜(Kerr-lens)效应,结合在增益介质外运用的线性3456矩阵寻找自洽解,对半导体可饱和吸收镜(SESAM)启动的高功率KLM钛宝石激光器谐振腔的像散、稳定性、光束参数、自聚焦效应和克尔自聚焦强度与腔参数的关系进行了系统的理论计算。计算结果与实验结果相符合。该计算为SESAM启动的五镜腔KLM激光器的设计和调整提供了理论依据。
克尔透镜锁模,, 飞秒,, 半导体可饱和吸收镜,, 五镜腔
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【期刊论文】低抽运三镜腔自锁模掺钛蓝宝石激光器的理论与实验研究*
章若冰, 王清月, 边自鹏, 梁宏业, 虎冬青, 孙敬华
物理学报,2000,49(4):774~761,-0001,():
-1年11月30日
实现了低抽运三镜腔自锁模掺钛蓝宝石激光器的自锁模运转,对该激光嚣的自锁模区进行了实验研究,并对象散、稳定性、光束参量和克尔自聚焦强度与腔参量的关系进行了系统的理论计算该计算为自锁模固体激光器的设计和调整提供了理论依据。
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【期刊论文】非布儒斯特角情况下四棱镜组二阶、三阶色散的解析表示*
章若冰, 虎冬青, 孙敬华, 王清月, 张树葵, 文国庆
物理学报,2000,49(3):469~474,-0001,():
-1年11月30日
给出非布儒斯特角情况下四棱镜组二阶、三阶色散的解析表示,并给出改变入射角和入射波长以及棱镜顶角对二阶、三阶色散的影响。
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49浏览
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章若冰, Dongqing Pang*, Ruobing Zhang, Jinghua Sun, Qingyue Wang
Optics & Laser Technology 33(2001)249-254,-0001,():
-1年11月30日
In this article we propose a theoretical treatment of noncollinear phase-matched femtosecond parametric interaction process pumped by ultrashort optical pulses, and investigated the pulse characteristics of OPG in BBO crystal. The results show that the major factors, which a8ect the optical parametric conversion coe9cient and durations of the pulses, are the group velocity mismatch and the phase mismatch among the three ultra-short pulses. In addition, the material dispersion can cause the durations of the pulses to increase when pump pulse is below 20 fs, and its in:uence becomes more obvious at low pump intensity.
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【期刊论文】Group velocity matching in type-III phase-matching geometry in BBO☆
章若冰, Dong-Qing Pang, Ruo-Bing Zhang*, Jing Ma, Wei-Li Zhang, Qing-Yue Wang
Optics Communications 211(2002)319-322,-0001,():
-1年11月30日
In this paper, we investigate the group velocity matching based on tilting pulse front in type-III collinear phasematching configuration in BBO crystal. The design seems simple and practicable.
Phase-matching condition, Tilted wave-front, Nonlinear Optics
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章若冰, Dongqing Pang*, Ruobing Zhang, Qingyue Wang
Optics Communications 196(2001)293-298,-0001,():
-1年11月30日
In this paper, we theoretically investigated the characteristics of the noncollinear phase-matched optical parametric amplifiers (OPA) system (NOPA) eeded by a white-light continuum. The results of our calculation demonstrate that the OPA system will be very sensitive to the exact noncollinear angle and the chirp of the seed pulse derived from white light continuum generation. For a sub-10 fs regime, GVM becomes a major detrimental factor and pre-compressing white light will weaken its influence.
Parametric process, Nonlinear optics, Frequency conversion
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章若冰, Ruobing Zhang, Jing Ma, Dongqing Pang, Jinghua Sun, and Qingyue Wang
APPLIED OPTICS/Vol. 43, No.10/1 April 2004,-0001,():
-1年11月30日
We describe oscillating loops in a laser cavity and optical paths in a laser crystal of different wavelength rays for a four-mirror cavity Kerr-lens mode-locked laser. The relation between different wavelength ray paths and laser resonator parameters is deduced. The analytical expressions of second- and thirdorder dispersion including angular dispersion of the crystal are presented. The variations of group-delay dispersion (GDD) and third-order dispersion (TOD) with cavity parameters are calculated exactly. The calculation shows that GDD and TOD increase rapidly when the spacing between two folding mirrors approaches the boundary of a cavity stability zone. The rapid dispersion increase influences the modelocked pulse width and the mode-locked stability.
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章若冰, Ruobing Zhang, Dongqing Pang, and Qingyue Wang
APPLIED OPTICS/Vol. 41, No.6/20 February 2002,-0001,():
-1年11月30日
We have theoretically analyzed the characteristics of an optical parametric amplifier system seeded by an optical parametric generation. We investigated the influences of the energy, pulse duration, material dispersion, and the third-order nonlinear effect in β-barium borate. The group-velocity mismatch (GVM) becomes the most important factor for the amplification of bandwidths. Even though tilting the wave front of the pump can decrease the GVM, it seems impossible to generate pulses smaller than 10-fs with 400-nm pumping. However, 10-fs pulses can be achieved with a 30-fs pump duration with pumping at 800nm.
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章若冰, Ruo-Bing Zhang, Jing-Hua Sun, Dong-Qing Pang, Jian-Ming Dai, and Qing-Yue Wang
APPLIED OPTICS/Vol. 40, No.3/20 January 2001,-0001,():
-1年11月30日
We present analytical expressions of quadratic and cubic phases in a three-element resonator for Kerrlens mode locking. Variation of quadratic and cubic phases with wedge angles of Ti: sapphire and apex angles of a prismatic output coupler are calculated. The results provide a theoretical basis for the design of a three-element cavity.
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章若冰, Jinghua Sun, Ruobing Zhang, Qingyue Wang, Lu Chai, Dongqing Pang, Jianming Dai, Zhigang Zhang, Kenji Torizuka, Tadashi Nakagawa, and Takeyoshi Sugaya
20 July 2001/Vol. 40, No.21/APPLIED OPTICS,-0001,():
-1年11月30日
We present a novel high-power, self-starting mode-locked Ti: sapphire laser with a semiconductor saturable-absorber mirror as the starter element. This laser, whose slope efficiency is 22%, generates pulses with an average power as high as 1.7 W and a pulse width as short as 16 fs. The self-starting process is also investigated.
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