visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-05-16 16:00 
연사  
장소 #1323(E6-2, 1st Fl.) 

Tuning microwave cavities with biased nonlinear dielectrics for axion searches

 

May 16, 2016 (Mon) 4PM,  #1323(E6-2, 1st Fl.)

Dr. Daniel Bowring , Fermi National Accelerator Laboratory

 

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)

번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
445 2018-11-22 15:00    Experimental and Computational Study on Physical Properties based on Granular System file
444 2021-02-17 09:00    석학 대중 강연 및 강의 시리즈 file
443 2019-04-04 16:00    Chiral spin-photon interaction at nanoscale file
442 2023-11-22 10:00    [High Energy Theory Seminar] Exact Quantum Algorithms to Recognize Quantum Phases of Matter
441 2019-05-24 16:00    Infrared spectroscopy study on metal-insulator transitions in layered perovskite iridates file
440 2023-06-16 13:00    Quantum critical states under extreme conditions
439 2019-12-05 16:00    Subwavelenth Photonic Devices: From Single Photon Sources to Solar Cell file
438 2018-10-04 16:00    Engineering light absorption in an ultrathin semiconductor metafilm file
437 2019-07-10 16:00    Public Lectures file
436 2019-07-16 16:00    2019 Physics Distinguished Lecture file
435 2019-12-18 16:00    Road to Higher Tc Superconductivity file
434 2016-06-14 15:00    No-Insulation High Temperature Superconductor Magnet Technology for Compact, Reliable, and Low-Cost High Field DC Magnets
433 2018-11-21 15:00    Engineering topological quantum physics at the atomic scale file
432 2022-04-08 11:00    (응집물리 세미나) Flat-surface-assisted physical phenomena occurring in single crystal metal thin film file
431 2019-10-29 10:00    Unconventional Spin Transport in Quantum Materials file
430 2021-02-02 14:30    Quantum- & Nano-Photonics 세미나(Integrated Nanophotonics with Metamaterials, Microcomb, and Atomic Systems) file
429 2018-11-23 15:00    Entanglement string and Spin Liquid with Holographic duality file
428 2018-06-22 10:00    Success in Research Career file
427 2016-04-18 15:30    First Principles Approaches for Intermolecular Interactions: From Gas-Phase Dimers to Liquid Water and Molecular Crystal Polymorphism file
426 2020-12-02 10:00    Recent progress in Axion Dark Matter eXperiment (ADMX) technology file