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24 September 2004 Higher-order Gaussian beams: new achievements
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Proceedings Volume 5582, Advanced Optoelectronics and Lasers; (2004)
Event: 2003 Chapter books, 2003, Bellingham, WA, United States
As well known, rectangular Hermite-Gaussian modes as well as cylindrical Laguerre-Gaussian modes do form an orthogonal set endowed with shape-invariance properties. So they can form an expansion basis for many propagation-invariant wave fields in the paraxial regime. Especially for those coupled from laser resonators or oscillating inside. In this contribution, is addressed the determination of the sufficient number of modes in the expansion for both sets and in different aperturing kinds: hard, soft and moderate.
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M. Traiche "Higher-order Gaussian beams: new achievements", Proc. SPIE 5582, Advanced Optoelectronics and Lasers, (24 September 2004);

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