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- He showed that when a beam has Bessel intensity characteristics across its cross-section, it will be diffraction free in nature. 这种无衍射光将广泛的应用于光学信号处理、印刷和其它一些基于激光的空防设备中。
- Based on Huygens-Fresnel diffraction integral theory, the propagation properties of Bessel beam were studied in this paper. 论文中,我们基于惠更斯-菲涅耳衍射积分理论研究了由轴棱锥产生的贝塞尔光束的传输特性,并且通过几何光学解析无衍射光束的聚焦特性。
- Space Spectrum and Filtering of Apertured Bessel Beam[J]. 引用该论文 蒋志平;刘泽金;陆启生;赵伊君.
- Particles Manipulation in Multi-Plane Using Non-Diffracting Bessel Beam[J]. 引用该论文 Liu Bin;Wu Fengtie;Jiang Xinguang.
- Experiment Study on Bottle Beam Generated by Interfering Bessel Beams[J]. 引用该论文 Wu Fengtie;Liu Bin;Lu Wenhe;Ma Baotian.
- Abstract: The propagation of ultrashort pulsed Bessel beams in free space within and beyond the paraxial approximation is studied. 摘要： 对超短脉冲贝塞尔光束在近轴近似和非近轴情况下自由空间中的传输作了研究。
- Effect of Bandwidth on Propagation of Pulsed Bessel Beams[J]. 引用该论文 彭润伍;范滇元.
- Using axicon-based optical devices can realize such transormations as Gauss' beam into a diffraction-free Bessel beam,solid beam and annular beam converting each other. 应用旋转棱镜和组合光学系统能够将高斯光束变换成“无衍射”贝塞尔光束，并能实现实心和环状光束的相互变换。
- Results show that if the cross-section of the axicon is ideally manufactured in circular symmetry, the field distribution behind the axicon is approximately an ideal Bessel beam. 计算结果指出,当轴棱锥的截面为圆对称的理想加工时, 轴棱锥产生的光场分布为近似理想的零阶贝塞耳光。
- The solution of the zero order of the first kind Bessel beam (nondiffracting J0 beam) is given by superposition of the plane waves whose wave vectors lies on the surface of a cone. 摘要由同一锥面上的平面波叠加，给出无衍射第一类零阶贝塞尔光束（无衍射J0光束）的解。
- Furthermore, in recent several years, people have generated considerable interests in the high order Bessel beams. 此外,近年来人们对高阶贝塞尔光束产生了极大的兴趣。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- Applications of Bessel beam:a review 贝塞尔光束的应用
- Another important task in my dissertation is aimed at studying spectral anomalies of focused spatially fully coherent polychromatic high order Bessel beams. 本学位论文的另一个重要工作是研究完全相干的多色高阶贝塞尔光束通过光阑和透镜系统后的聚焦情况及其光谱变化现象。
- The dynamic interaction in two interfering Bessel beams with the same angular frequency and the size control of the bottle beams were analyzed in detail. 详细分析了两束相干同频率贝塞尔光的相互作用原理及其如何控制局域空心光束的空间尺寸。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
- Jon sent away for a free almanac. 乔写信去要一份免费赠阅的年历。
- Without making the paraxial approximation, a detailed study on the propagation of ultrashort pulsed Bessel beams in linear normal and anomalous dispersive media has been performed using the method of Fourier transform. 未作近轴近似的条件下，用傅立叶积分变换法详细研究了超短脉冲贝塞尔光束在正、负色散介质中的传输特性。 脉冲光束的空间形状在传
