장소 | #1323(E6-2, 1st Fl.) |
---|---|
일시 | May 16, 2016 (Mon) 4PM |
연사 | Dr. Daniel Bowring , Fermi National Accelerator Laboratory |
Tuning microwave cavities
May 16, 2016 (Mon) 4PM, #1323(E6-2, 1st Fl.)
Dr. Daniel Bowring , Fermi National Accelerator
The search for dark matter axions may be aided by haloscopes: tunable, passive, high-Q microwave resonators, placed inside multi-tesla magnetic fields and operating at cryogenic temperatures. (The Axion Dark Matter eXperiment, ADMX, is an example of this technique.) In the presence of strong B-fields, axions may couple to two photons, which in turn may be detected through the resonant excitation of the high-Q microwave cavity and subsequent low-noise amplification and readout. There are points of common interest, then, between experiments like ADMX and the particle accelerator technology community. This talk addresses several of these common points, with an emphasis on tuning strategies. Axion searches above ~1 GHz will employ multiple resonators locked to the same frequency. Fine tuning of individual resonators may be accomplished using thin films of strontium titanate (STO) and related materials, whose dielectic strength can be varied through DC voltage bias.
Contact: T.8166(CAPP Administration Office)
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
공지 | 2019/09/18 - 12/5 | Seminar Room #1323 | Prof. David Schuster and etc. | Fall 2019: Physics Seminar Serises |
공지 | 2019/09/02 - 12/09 | Seminar Room 1501 | 이호성 박사 (한국표준과학연구원) and etc. | Fall 2019: Physics Colloquium |
80 | Jun. 14 (Tue) 4PM | Seminar Room (#2502, 2nd fl.) | Young-Sik Ra, Université Pierre et Marie Curie | Photonic quantum network based on multimode squeezed vacuums and single-photon subtraction |
79 | June 14, 2016 (Tue) 3PM | #1323 (E6-2 1st fl.) | Prof. Seungyong Hahn, Florida State University | No-Insulation High Temperature Superconductor Magnet Technology for Compact, Reliable, and Low-Cost High Field DC Magnets |
78 | Jun 1 (Wed) 4 PM | #1323(E6-2 1st fl.) | Kil-Byoung Chai, Caltech | Laboratory experiments relevant to mesospheric clouds, Saturn’s rings & astrophysical jets |
77 | May 31 (Tue.) 4 PM | #1323(E6-2, 1st fl.) | Dr. Kimin Kim, KAIST | Understanding 3D tokamak physics towards advanced control of toroidal plasma |
76 | Jun. 1(Wed) 10:30 AM | BK21 Conference Room (#1318, E6-2) | Dr. Noriaki Horiuchi, Editor, Nature Photonics | Welcome to Nature Photonics |
75 | May 24 (Tue) 4 PM | E6-2. #1323(1st fl.) | Dr. Euyheon Hwang, SKKU Advanced Institute of Nanotechnology, Sung Kyung Kwan University | Electronic and magnetic properties of 2D transition-metal thiophosphates and tunability of magnetic order with carrier density |
74 | May 19 (Thu) 4PM | #1323(E6-2, 1st fl.) | Dr. Heedeuk Shin, POSTECH | Nonlinear/quantum optical effect in silicon nano-photonics |
73 | 5월 17일(화), 11:00 ~ 12:00 | 창의학습관(E11), 406호 | 방준혁 박사(Korea Basic Science Institute, KBSI) | The CERN Resonant WISP Search: Development, Results and Lesson-Learned |
72 | May 19, 2016 (Thur.) 3PM | May 19, 2016 (Thur.) 3PM, | Dr. Michael Betz, CERN | The CERN Resonant WISP Search: Development, Results and Lesson-Learned |
» | May 16, 2016 (Mon) 4PM | #1323(E6-2, 1st Fl.) | Dr. Daniel Bowring , Fermi National Accelerator Laboratory | Tuning microwave cavities with biased nonlinear dielectrics for axion searches |
70 | May 13 (Fri.), 1:30 PM | E6. #1501(1st fl.) | Dr. Young-Woo Son, Dept. of Physics, KIAS | Aperiodic crystals in low dimensions |
69 | May 13 (Fri.) 4 PM | E6. #1501(1st fl.) | Dr. Hosub Jin, Dept. of Physics, UNIST | Graphene analogue in (111)- BaBiO3 bilayer heterostructures for topological electronics |
68 | May 11 (Wed.), 4 PM | E6-2. #1323(1st fl.) | Dr. Bumjoon Kim, Max Planck Institute for Solid State Research | The quest for novel high-temperature superconductors---Prospects and progress in iridates |
67 | Apr. 28 (Thu.) 3PM | #2501(E6-2. 2nd fl.) | Dr. Chang Hee Sohn, SEOUL NATIONAL UNIVERSITY | Lattice/Spin/Charge Coupling in 5d Pyrochlore Cd2Os2O7 |
66 | April 26 (Tue), 4PM | #1323(1st Floor. E6-2) | Dr. Myung-Ho Bae, Korea Research Institute of Standards and Science | Transport spectroscopy for electronic bands in carbon-based nanomaterials with weak-bond contacts |
65 | Apr. 19(Tue.), 2PM | #1323(E6-2. 1st fl.) | Prof. Mark Koepke, Department of Physics and Astronomy, West Virginia University, USA | Nonlocal collisional electron transport in partially ionized plasma generation, structure, and stability |
64 | 4월 18일(월), 15:30~ | KI빌딩(E4), 강의실 B501 (5F) | Prof. Robert A. DiStasio Jr. (Cornell University) |
First Principles Approaches for Intermolecular Interactions: From Gas-Phase Dimers to Liquid Water and Molecular Crystal Polymorphism
![]() |
63 | Apr. 12 (Tue.), 4 PM | E6-2. 1st fl. #1323 | Dr. Jeehoon Kim, POSTECH | Confinement of Superconducting Vortices in Magnetic Force Microscopy |
62 | Apr. 08 (Fri.), 4:00 PM | E6-2. 5st fl. #1501 | Dr. Changyoung Kim, SEOUL NATIONAL UNIV. | Spectroscopic studies of iron-based superconductors : what have we learned? |
61 | Apr. 08 (Fri.), 13:30 PM | E6-2. 1st fl. #1501 | Dr. Yunkyu Bang, Chonnam National Univ. | Theoretical Overview of Iron-based superconductors and its future |