(광학분야 특별세미나)Adiabaticity and symmetry in optical waveguide design
2022.05.17 17:47
장소 | E6 1323 |
---|---|
일시 | 4pm, 28th April |
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.
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
152 | 5. 9(월),16:00 | E6, #1501 | 김창영교수 (서울대) | Searching for new electronic properties in correlated material flatland |
151 | 5. 23(월),16:00 | E6, #1501 | 김준성교수 (postech 물리학과) | Novel electronic transport in topological van der Waals magnets |
150 | 5.16(월),16:00 | E6, #1501 | 조규붕교수 (HKUST) | Design synthetic topological matter with atoms and lights |
149 | 5. 30(월), 16:00 | E6, #1501 | 공수현교수 (고려대학교 물리학과) | Light manipulation using 2D layered semiconductors |
148 | 2015/10/23-12/4 10:30 AM | E6, #1501 | Prof. YongKeun Park & Prof. Tae-Young Yoon | How to write a good scientific paper[Open lecture series] |
147 | July 8(Mon), 14:00 | E6, #1322 | T. L. M. Guedes (Univ. of Konstanz) |
Ultrabroadband squeezed pulses and their relation to relativity
![]() |
146 | May. 25th (Wed), 14:00 | E6 Room(#2501) | Dr. Duk-Hyun Choe(Samsung Advanced Institute of Technology) |
Atomic-level insights into ferroelectric switching and preferred orientation of ultrathin hafnia
![]() |
145 | Nov. 22th (Thur), 15:00 | E6 Room(#1323) | Prof. Suprijadi Haryono |
Experimental and Computational Study on Physical Properties based on Granular System
![]() |
144 | August. 1st (Thu), 14:00 | E6 Room(#1323) | Hyeok Yoon |
Low-density Superconductivity in SrTiO3 Probed by Planar Tunneling Spectroscopy
![]() |
143 | August. 16th (Fri), 14:00 | E6 Room(#1323) | Jinxing Zhang |
Multiferroic and Magnetoelectric Effects by Tailoring Interfacial Chemistry and Physics in Correlated Oxides
![]() |
142 | August. 6th (TUE), 14:00 | E6 Room(#1323) | Kanghyun Chu |
Visualization of in-plane piezoresponse vector fields
![]() |
141 | May. 8th (Wed), 16:00 | E6 Room(#1323) | Jieun Lee |
Imaging valley dependent electron transport in 2D semiconductors
![]() |
140 | June 23th (Thur), 11:00 | E6 Room(#1322) | Sun Yool Park(Joint Institute for Laboratory Astrophysics (JILA) & University of Colorado) |
JILA’s search for the electron’s Electric Dipole Moment (eEDM) to probe physics beyond the standard model
![]() |
» | 4pm, 28th April | E6 1323 | 유경식 (KAIST 전기및전자공학부) | (광학분야 특별세미나)Adiabaticity and symmetry in optical waveguide design |
138 | 4pm, 14th April | E6 1323 | 신승우 (KAIST 물리학과) | (광학분야 특별세미나)Holographic tomography of dielectric tensors at optical frequency |
137 | 4pm, 10th May | E6 1323 | 권혁준 (Korea Institute for Advanced Study, KIAS) | (광학분야 특별세미나)Testing quantum thermodynamics using quantum optics |
136 | 4pm, 26th May | E6 1323 | 황민수 (Department of Physics, Korea University) | (광학분야 특별세미나)Topological photonic devices |
135 | 10AM, 29th Mar. / 13:30 PM, 30th Mar. | E6 #1501/zoom, E6 #2502/zoom | Dr. RYO HANAI (APCTP) |
Non-reciprocal phase transitions
![]() |
134 | 10AM, 31th Mar. | E6 #1501/zoom | Dr. Samuel Begg (APCTP) |
Weiss fields for Quantum Spin Dynamics
![]() |
133 | Jan. 25th (Tue), 15:00 | E6 #1501/online | Junhyun Lee (Rutgers, the State University of New Jersey) |
Emulating twisted double bilayer graphene with a multiorbital optical lattice
![]() |