Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Michael Kazda"'
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 69:3711-3718
Microwave synthesizers that are used to generate microwave signals for the CSF1 and CSF2 fountain clocks at the Physikalisch-Technische Bundesanstalt (PTB) are described. The synthesizers are based on a divider chain and a digital frequency synthesis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43cdd135c57d5dee3ef349032c0be126
https://doi.org/10.1109/tim.2019.2936694
https://doi.org/10.1109/tim.2019.2936694
Publikováno v:
2021 IEEE MTT-S International Microwave Symposium (IMS).
In this paper we present a system for generating a comb of low phase noise microwave signals. Each of the comb's teeth can be used as a reference signal for converting the output signal of a GHz-oscillator into an intermediate signal in the MHz range
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8dac13a46c23601269b04a929fbab71
https://doi.org/10.1109/ims19712.2021.9574817
https://doi.org/10.1109/ims19712.2021.9574817
Autor:
Stefan Weyers, Burghard Lipphardt, Michael Kazda, Kurt Gibble, J. Rahm, G. Dobrev, Vladislav Gerginov
Publikováno v:
Metrologia. 55:789-805
Improvements of the systematic uncertainty, frequency instability, and long-term reliability of the two caesium fountain primary frequency standards CSF1 and CSF2 at PTB (Physikalisch-Technische Bundesanstalt) are described. We have further investiga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e739a84386059d88bff3209a5596ac57
https://doi.org/10.1088/1681-7575/aae008
https://doi.org/10.1088/1681-7575/aae008
Autor:
Vladislav Gerginov, Michael Kazda
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 65:2389-2393
We present a method for the suppression of frequency shifts in pulsed atomic clocks based on the Ramsey scheme, caused by unwanted interaction of the atoms with the resonant interrogation field during the free atomic evolution time (Ramsey time). The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68bc0c51012758fb6a97c144365360a9
https://doi.org/10.1109/tim.2016.2581439
https://doi.org/10.1109/tim.2016.2581439
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 62:2812-2819
We explore the method of rapid adiabatic passage for collisional frequency shift measurements in the primary caesium fountain clock PTB-CSF2 at the Physikalisch-Technische Bundesanstalt (PTB). This method can be used to vary the local density distrib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::143bc3697451a2c5adf80141e2ddd96c
https://doi.org/10.1109/tim.2013.2248303
https://doi.org/10.1109/tim.2013.2248303
Coherent manipulation of atomic states is a key concept in high-precision spectroscopy and used in atomic fountain clocks and a number of optical frequency standards. Operation of these standards can involve a number of cyclic switching processes, wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3103c375cb0720e843e047fdd74497a
Autor:
Stefan Weyers, Ekkehard Peik, Nils Nemitz, Michael Kazda, Nils Huntemann, Vladislav Gerginov, Burghard Lipphardt, Chr. Tamm
We describe a measurement of the frequency of the 2S1/2(F = 0) - 2D3/2(F' = 2) transition of 171Yb+ at the wavelength 436 nm (frequency 688 THz), using a single Yb+ ion confined in a Paul trap and two caesium fountains as references. In one of the fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afd62cae90a367a55b2394f2a7003559
http://arxiv.org/abs/1310.8190
http://arxiv.org/abs/1310.8190