Public opinion and american foreign policy
Public opinion and american foreign policy
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舆论与美国外交政策
DOI：
10.1163/2468-1733_shafr_sim010070022
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
M. F. Merrett
中科院分区：
文献类型：
--
作者：
M. F. Merrett
本文给出了一种简单而强大的新旁轴射线形式，为高斯光束谐振器的设计提供了一种替代方法。该理论利用Delano或yybar图方法，是Shack和Kessler最近对激光系统工作的扩展。该方法被证明是对传统ABCD方法的补充，并建立在J.A.阿尔诺对复射线的开创性思想之上。本文提出了基于射线的复波前曲率的解析公式，并给出了球面波传播的清晰的广义描述，其中高斯光束被认为是一个特例。合成理论将复q参数和ABCD定律与yybar复射线分量统一起来，并表明复q参数的ABCD定律起源于yybar复射线。导出了用yybar坐标设计稳定多元谐振器的新基本方程，并证明了yybar图为自动定义稳定谐振器提供了一种新方法。还讨论了yybar设计技术的各种应用，包括方便的设计约束的设置、M光束的描述、相图的生成以及谐振器的合成和分析。
A simple and powerful new paraxial ray formalism is shown to provide an alternate method for designing Gaussian Beam Resonators. The theory utilizes the Delano or yybar diagram approach and is an extension of the recent work by Shack and Kessler for laser systems. The method is shown to be complementary to the conventional ABCD method and is founded upon J.A. Arnaud's pioneering ideas for complex rays. The thesis develops an analytic formulation of a ray based complex wavefront curvature and yields a clearly generalized description of spherical wave propagation, for which Gaussian beams are considered a special case. The resultant theory unifies the complex q parameter and the ABCD law, with the yybar complex ray components and also suggests that the ABCD law for the complex q parameter has its origin in the yybar complex ray. New fundamental equations for designing stable multi -element resonators using the yybar coordinates are derived, and it is shown that the yybar diagram provides a novel method for defining automatically stable resonators. Various applications for the yybar design technique are also discussed, including the setting of convenient design constraints, the description of M beams, generating phase diagrams, and resonator synthesis and analysis.