Seminarium Optyczne
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2021-01-21 (10:15) 
mgr Mateusz Narożnik (UMK Toruń)
Ultra-stable cavity system as a potential gravitational wave detector
The existing gravitational wave observatories, i.e. LIGO, Virgo and KAGRA, are sensitive togravitational signal in the range from over a dozen Hz to roughly 2 kHz and cannot observe anysignificant signal below several Hz. In LIGO-like ground-based detectors the low frequency regionis fundamentally limited by seismic noises. During my presentation I will present the idea of usingexisting and future planned high-quality-factor cavities to cover lacking range of gravitational wavefrequency. The table-top ultra-stable cavities system will fill lacking range from several mHz tosingle Hz. In that range optical cavity is the most sensitive and because of its construction andisolation from ground it’s not so susceptible to seismic noises as LIGO-like detectors. Moreover, Iwill present new limit on relic gravitational-wave background in the millihertz range using existingdata from two ultra-stable cavities comparison
Seminarium z użyciem połączenia internetowegohttps://zoom.us/j/97696726563(meeting ID: ID 97696726563, password: 314297)