3rd Seminar of Coherent Optical Science

第3回COEコヒーレント光科学セミナー

講演題目：「光ビームと光パルスの伝播」
講演者： Dr. Colin J. R. Sheppard
Professor of Bioengineering
National University of Singapore

日時： 1月14日（水）11:00-12:00
場所：西１号館４１４号室（情報通信工学科ゼミ室）
対象：学部４年生，大学院生並びに教職員など

Colin Sheppard教授はOxford大学とSydney大学で長年にわたり共焦点顕微鏡の研究を続けられてこられた世界的に著名な研究者です（最近Singapore国立大学に移られました）．今回電通大を訪ねてこられるのを機会にチュートリアル・セミナーをお願いしました．皆様のご参加を歓迎します.

世話人（問い合わせ先）　武田光夫(情報通信工学科)
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Coherent Optical Science Seminar Announcement

Title: Beams and Pulses
Speaker: Dr. Colin J. R. Sheppard
Professor of Bioengineering
National University of Singapore
Date: January 14 (Wednesday), 11:00-12:00 AM
Place: Seminar Room, No. 414, West 1 Building

The propagation of standard types of optical beam, such as Gaussian beams and Bessel beams, is a basic foundation of modern photonics. These beams are usually developed from paraxial theory, but in some cases a development that treats highly divergent beams is required. We discuss different models for these high-aperture beams, including the complex source point model. Ultra-short pulses must propagate such that they obey the Helmholtz equation (or Maxwell's equations). Various different models for ultra-short pulse propagation can be considered. A particular model, called an isodiffracting pulsed beam, is appropriate for consideration of mode-locked pulses from a laser.