visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-04-28 16:00 
일시 4pm, 28th April 
장소 E6 1323 
연사 유경식 (KAIST 전기및전자공학부) 
Title:  Adiabaticity and symmetry in optical waveguide design
 
Speaker: 유경식 (KAIST 전기및전자공학부)
 
Date: 4pm, 28th April
 
Place: E6 1323 (Available seats can be limited because of the COVID situation.)
 
Abstract
'Adiabaticity' and 'shortcuts to adiabaticity' are important concepts in many aspects of modern physics. In this talk, we discuss two specific examples of optical waveguide designs that involve adiabatic photonic state evolutions with potential applications in photonic integrated circuits. The first example is highly-efficient broadband adiabatic mode transformation between single-mode optical fibers and integrated silicon waveguides. Based on adiabatic mode transformation through tapered optical waveguides, we show that high-efficiency optical energy transfer between dissimilar waveguides can be achieved for building  seamless interfaces between heterogeneous photonic systems. The second example is strong time-asymmetric optical transmission near an exceptional point involving non-adiabatic state jumps. Using the conventional photonic integrated circuits platform, we experimentally verify that time-asymmetric responses can be obtained in a non-Hermitian dynamic system without encircling an exceptional point by carefully controlling evolution dynamics.
 
번호 날짜 장소 제목
공지 2023-02-27 12:00  E6-1 #1501  2023 봄학기 콜로키움 전체 일정
공지 2023-03-16 16:00  E6-2 #1323  2023 봄학기 광학분야 및 응집물리 특별세미나 전체 일정
378 2022-04-11 16:00  E6, #1501  Emergence of Statistical Mechanics in Quantum Systems
377 2022-04-25 16:00  E6, #1501  Ultrafast electron beam, a tool to explore the nanoscopic world of materials(우리말강의)
376 2022-04-04- 16:00  E6, #1501  New paradigms in Quantum Field Theory
375 2022-05-10 16:00  E6 1323  (광학분야 특별세미나)Testing quantum thermodynamics using quantum optics
374 2022-04-14 16:00  E6 1323  (광학분야 특별세미나)Holographic tomography of dielectric tensors at optical frequency
373 2022-05-26 16:00  E6 1323  (광학분야 특별세미나)Topological photonic devices
» 2022-04-28 16:00  E6 1323  (광학분야 특별세미나)Adiabaticity and symmetry in optical waveguide design
371 2022-03-31 16:00  online  (광학분야 특별세미나)Ultrafast time-resolved spectroscopy in topological materials
370 2016-09-21 16:00  E6-2. #2502(2nd fl.)  Entanglement probe of two-impurity Kondo physics
369 2016-04-18 15:30  KI빌딩(E4), 강의실 B501 (5F)  First Principles Approaches for Intermolecular Interactions: From Gas-Phase Dimers to Liquid Water and Molecular Crystal Polymorphism file
368 2022-05-02 16:00  E6, #1501  What can we learn from the history of science and technology?(우리말강의)
367 2022-05-23 16:00  E6, #1501  Novel electronic transport in topological van der Waals magnets
366 2022-05-30 16:00  E6, #1501  Light manipulation using 2D layered semiconductors
365 2022-05-09 16:00  E6, #1501  Searching for new electronic properties in correlated material flatland
364 2022-05-16 16:00  E6, #1501  Design synthetic topological matter with atoms and lights
363 2016-05-17 11:00  창의학습관(E11), 406호  The CERN Resonant WISP Search: Development, Results and Lesson-Learned
362 2021-05-27 16:00  온라인  찾아가는 물리연구 현장(유럽 입자물리학연구소 소개) file
361 2021-07-29 14:00  Online seminar  Gravitationally Induced Dark Sector and Inflationary Dynamics file
360 2019-08-19 10:00  Rm. 1322, E6-2  Tutorials on Multimode Quantum Optics in the Continuous Variable Regime file
359 2016-04-01 14:30  E6-2. 1st fl. #1501  Interference of single charged particles without a loop and dynamic nonlocality