visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-05-16 16:00 
일시 May 16, 2016 (Mon) 4PM 
장소 #1323(E6-2, 1st Fl.) 
연사 Dr. Daniel Bowring , Fermi National Accelerator Laboratory 

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 장소 제목
374 2024-05-28 11:00  E6-2, #2501  동적평균장 이론 소개
373 2024-05-28 10:00  E6-2, #2501  Mixed-State Quantum Spin Liquids and Dynamical Anyon Condensations in Kitaev Lindbladians
372 2022-05-27 11:00  Online seminar  Current Status and Future Plans of ADMX file
371 2016-05-24 16:00  E6-2. #1323(1st fl.)  Electronic and magnetic properties of 2D transition-metal thiophosphates and tunability of magnetic order with carrier density
370 2019-05-24 16:00  #1323, E6-2  Infrared spectroscopy study on metal-insulator transitions in layered perovskite iridates file
369 2023-05-22 13:00  E6-6 119  Design & Development of Electrochemical Biosensors for the Detection of T2DM Biomarkers
368 2019-05-21 16:00  #5318, E6-2  Classification of flat bands according to the band-crossing singularity of Bloch wave functions file
367 2019-05-02 16:00  #1323, E6-2  Anomalous optical properties of halide perovskites file
366 2016-05-19 15:00  May 19, 2016 (Thur.) 3PM,  The CERN Resonant WISP Search: Development, Results and Lesson-Learned
365 2016-05-19 16:00  #1323(E6-2, 1st fl.)  Nonlinear/quantum optical effect in silicon nano-photonics
364 2023-05-17 16:30  Zoom  Detecting Hidden Photon Dark Matter via the Excitation of Qubits file
363 2024-05-16 14:30  E6-2 #2502 & Zoom  [Astrophysics Seminar] Observational Cosmology with Superconducting Sensors
» 2016-05-16 16:00  #1323(E6-2, 1st Fl.)  Tuning microwave cavities with biased nonlinear dielectrics for axion searches
361 2024-05-16 16:00  E6-2, #1323  [High Energy Theory Seminar] Conformal Collider Physics
360 2023-05-15 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  Role of dark Higgs boson in DM physics and cosmology file
359 2024-05-14 16:00  E6-2, #2502  [High Energy Theory Seminar] Minimal Production of Prompt Gravitational Waves during Reheating.
358 2016-05-13 13:30  E6. #1501(1st fl.)  Aperiodic crystals in low dimensions
357 2016-05-13 16:00  E6. #1501(1st fl.)  Graphene analogue in (111)- BaBiO3 bilayer heterostructures for topological electronics
356 2016-05-11 16:00  E6-2. #1323(1st fl.)  The quest for novel high-temperature superconductors---Prospects and progress in iridates
355 2019-05-01 16:00  #1323, E6-2  Raman and x-ray scattering study on correlated electron systems: two case examples file