Metamaterials Research for the Tunable Plasmonic Resonator| Dr. S. Al Kenany
382 بار بازدید -
3 سال پیش
-
Microwave Seminar at The Department
Microwave Seminar at The Department of Physics & Engineering, ITMO | 27 Oct 2021
Timecodes are below the abstract.
Dr. S. Al Kenany
University of California Berkeley
Title: "Metamaterials Research for the Tunable Plasmonic Resonator"
Abstract: Lawson et al. (Physical Review Letters 123 (2019) 141802) have proposed a new variant of the microwave cavity dark matter axion experiment (P. Sikivie, Physical Review Letters 51 (1983) 1415), by which a wire array metamaterial serves as the resonator. The plasma frequency is determined by the wire radius and spacing, and can be designed to cover an important part of the mass (frequency) range of the current best estimates of the post-inflation axion. Furthermore, and most importantly, the plasma frequency is a property of the bulk material rather than the boundary conditions, as is the case for a microwave cavity, and thus the plasmonic haloscope may solve a long-standing conundrum, namely how to reach very high frequencies without the sacrifice of conversion volume. In this seminar, I will describe the research of our group in exploring the properties of wire array metamaterials and helping establish the feasibility of the tunable plasmonic haloscope for a real axion search.
0:00:00 Intro.
0:00:08 Introduction of the speaker.
0:00:33 Start of the talk.
0:01:58 The search of dark matter axions
0:12:07 The tunable plasmonic holoscope
0:17:14 Wire array metamaterials
0:25:43 Experimental results
0:30:53 Concept for the practical tunable wire array
0:36:15 Summary
0:38:13 Acknowledgements
0:38:30 Questions
0:48:54 End
The Department of Physics and Engineering of ITMO University (Saint Petersburg, Russia) hosts online weekly seminars to discuss recent scientific achievements of researchers from all over the world with a wide audience. The topics include experimental (Optical seminar) and theoretical (Theoretical seminar) aspects of nanophotonics, solid-state physics, material science, as well as design and applications of radiofrequency structures and devices (Microwave seminar).
Upcoming and past events can be found at https://physics.itmo.ru/en/seminars
Facebook: physics.itmo
Twitter: physics_itmo
Instagram: physics.itmo
#MicrowaveSeminar #ITMO #новыйфизтех #scientificseminar
Timecodes are below the abstract.
Dr. S. Al Kenany
University of California Berkeley
Title: "Metamaterials Research for the Tunable Plasmonic Resonator"
Abstract: Lawson et al. (Physical Review Letters 123 (2019) 141802) have proposed a new variant of the microwave cavity dark matter axion experiment (P. Sikivie, Physical Review Letters 51 (1983) 1415), by which a wire array metamaterial serves as the resonator. The plasma frequency is determined by the wire radius and spacing, and can be designed to cover an important part of the mass (frequency) range of the current best estimates of the post-inflation axion. Furthermore, and most importantly, the plasma frequency is a property of the bulk material rather than the boundary conditions, as is the case for a microwave cavity, and thus the plasmonic haloscope may solve a long-standing conundrum, namely how to reach very high frequencies without the sacrifice of conversion volume. In this seminar, I will describe the research of our group in exploring the properties of wire array metamaterials and helping establish the feasibility of the tunable plasmonic haloscope for a real axion search.
0:00:00 Intro.
0:00:08 Introduction of the speaker.
0:00:33 Start of the talk.
0:01:58 The search of dark matter axions
0:12:07 The tunable plasmonic holoscope
0:17:14 Wire array metamaterials
0:25:43 Experimental results
0:30:53 Concept for the practical tunable wire array
0:36:15 Summary
0:38:13 Acknowledgements
0:38:30 Questions
0:48:54 End
The Department of Physics and Engineering of ITMO University (Saint Petersburg, Russia) hosts online weekly seminars to discuss recent scientific achievements of researchers from all over the world with a wide audience. The topics include experimental (Optical seminar) and theoretical (Theoretical seminar) aspects of nanophotonics, solid-state physics, material science, as well as design and applications of radiofrequency structures and devices (Microwave seminar).
Upcoming and past events can be found at https://physics.itmo.ru/en/seminars
Facebook: physics.itmo
Twitter: physics_itmo
Instagram: physics.itmo
#MicrowaveSeminar #ITMO #новыйфизтех #scientificseminar
3 سال پیش
در تاریخ 1400/10/30 منتشر شده
است.
382
بـار بازدید شده