Results 11 to 20 of about 16,536 (302)
Sub-Hz fundamental, sub-kHz integral linewidth self-injection locked 780 nm hybrid integrated laser. [PDF]
Sci RepToday’s precision experiments for timekeeping, inertial sensing, and fundamental science place strict requirements on the spectral distribution of laser frequency noise.
Isichenko A +7 more
europepmc +2 more sources
An optical atomic clock using $4D_J$ states of rubidium [PDF]
Quantum Science and TechnologyA.D. and C.O.
Duspayev, Alisher +3 more
openaire +3 more sources
A High-Precision Frequency Adjustment Circuit for Miniaturized Rubidium Atomic Clocks
Chinese Journal of Magnetic Resonance, 2019 Frequency adjusting precision is an important performance indicator of miniaturized rubidium atomic clock (RAC) in some applications, such as the case in GPS disciplined RAC systems.
YU Zhi-hui +4 more
doaj +2 more sources
Atomic Clocks in Space: A Search for Rubidium and Cesium Masers in M- and L-dwarfs [PDF]
Research Notes of the AAS, 2021 I searched for the ground state 6.8 and 9.2 GHz hyperfine transitions of rubidium and cesium toward M- and L-dwarfs that show Rb and Cs optical resonance lines. The optical lines can pump the hyperfine transitions, potentially forming masers.
J. Darling
semanticscholar +1 more source
Remote Sensing, 2022 Satellite atomic clocks are the key elements for position, navigation, and timing services of the Global navigation satellite system (GNSS); it is necessary to research the characteristics of BDS-3 on-orbit satellite atomic clocks for their further ...
Yifeng Liang +3 more
doaj +1 more source
Investigation of an Ultra High Signal-to-noise Ratio Physics Package for the Rubidium Atomic Clock
Chinese Journal of Magnetic Resonance, 2023 Driven by the demand for satellite navigation and deep space exploration, the performance of lamp-pumped rubidium atomic clock has been greatly improved, and its short-term frequency stability has reached the level of a small coefficient of 10-13τ -1/2 ...
CUI Jiaqi +7 more
doaj +1 more source
Evaluation of BDS-2 and BDS-3 Satellite Atomic Clock Products and Their Effects on Positioning
Remote Sensing, 2021 The BeiDou Navigation Satellite System (BDS) has completed third phase construction and currently provides global services, with a mixed constellation of BDS-2 and BDS-3. The newly launched BDS-3 satellites are equipped with rubidium and passive hydrogen
Shengfeng Gu +5 more
doaj +1 more source
A modified C-field circuit for the rubidium atomic clock [PDF]
AIP Advances, 2021 As one of the important circuits of the rubidium atomic clock, the C-field circuit plays a significant role in the rubidium atomic clock’s performance. Generally, a C-field circuit is used to provide a constant current to a C-field coil by forming a weak magnetic field to select two hyperfine mF = 0 energy levels and thus fine-tune the transition ...
Yonggang Guo +8 more
openaire +2 more sources
Remote Sensing, 2022 The quality of satellite clock offset affects the performances of positioning, navigation and timing services, and thus it is essential to the Global Navigation Satellite System (GNSS).
Hu Wang +5 more
doaj +1 more source
Microfabricated chip-scale rubidium plasma light source for miniature atomic clocks [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2012 We present the microfabrication and characterization of a low-power, chip-scale Rb plasma light source, designed for optical pumping in miniature atomic clocks. A dielectric barrier discharge (DBD) configuration is used to ignite a Rb plasma in a micro-fabricated Rb vapor cell on which external indium electrodes were deposited.
Venkatraman V. +5 more
openaire +2 more sources