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Research & Laboratory

제목
세미나 [11/08] The study of acoustic vortex beams generation using synthetic magnetic fields
작성일
2019.11.04
작성자
전기전자공학부
게시글 내용

< BK21 플러스 BEST 정보기술 사업단 세미나 개최 안내 > 


개최일시 : 2019년 11월 8일 (금) 11:00 ~ 12:00

개최장소 : 제 2공학관 B701호

세미나 제목 : The study of acoustic vortex beams generation using synthetic magnetic fields

내용 :

In this talk, I will show and analyze how the propagation of acoustic vortex beams in longitudinal synthetic magnetic fields is possible. I show two field configurations using a fluid contained in circulating cylinders: a uniform synthetic magnetic field hosting Laguerre-Gauss modes, and an Aharonov-Bohm flux tube hosting Bessel beams. For paraxial and non-paraxial beams, The analytical and numerical results have shown interesting features and differences from the well-studied case of electron vortex beams in magnetic fields, arising due to the vectorial nature of the acoustic wave velocity field. These results can illustrate how analogies between optical, electron and acoustic vortex beams can break down in the presence of external vector potentials. Finally, I discuss some possible connections and problems between acoustics and plasmon physics.

 

 

강연자 성함&직함 / 소속 : Dr. Irving Rondon / IBS for Theoretical Physics of Complex Systems

초청자 : 전기전자공학과 교수 김동현