Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Large-scale laser gyroscopes with high resolution are widely used in Earth rotation sensing and geophysical detection. We demonstrate a giant 64 m green laser gyroscope in a passive running mode. By adopting a heterolithic architecture and using a 532 nm solid state laser as the light source, the gyroscope demonstrates a short wavelength, a large-scale factor, and currently the highest -factor of 6 × 10 among existing gyroscopes. A minimum sensitivity of 7×10// is achieved, which is the best performance among passive ring gyroscopes (PRGs) to the best of our knowledge. This high sensitivity allows detection of terrestrial secondary microseismic signal at about 0.25 Hz, demonstrating the application value of large-scale PRGs in the field of geophysics. With a theoretical shot-noise limit of 1×10//, the PRG offers a promising solution for future detection of Earth rotation with extreme sensitivity.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OL.560688 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Gyroscope measurements of the precession and nutation of Earth's axis.
Sci Adv
September 2025
School of Physical and Chemical Sciences, University of Canterbury, Christchurch 8140, New Zealand.
High-precision, Sagnac interferometry has long been proposed as a route to test fundamental questions in physics such as the magnitude of relativistic precessions (e.g., the Lense-Thirring effect).
View Article and Find Full Text PDFContinuous order-to-order quantum phase transitions from fixed-point annihilation.
Rep Prog Phys
September 2025
TU Dresden, Institut für Theoretische Physik, Dresden, 01062, GERMANY.
A central concept in the theory of phase transitions beyond the Landau-Ginzburg-Wilson paradigm is fractionalization: the formation of new quasiparticles that interact via emergent gauge fields. This concept has been extensively explored in the context of continuous quantum phase transitions between distinct orders that break different symmetries. We propose a mechanism for continuous order-to-order quantum phase transitions that operates independently of fractionalization.
View Article and Find Full Text PDFA slot region in the magnetosphere of Jupiter.
Nat Commun
August 2025
School of Earth and Space Science and Technology, Wuhan University, Wuhan, China.
Understanding the balance between charged particle acceleration and loss is central to radiation belt research. Jupiter's Galilean moons orbit within its intense radiation environment and can act both as sources and sinks of energetic particles. Using observations from the Juno spacecraft, we identify large-scale depletions of energetic electrons along Europa's orbit.
View Article and Find Full Text PDFMicro Orthogonal Fluxgate Sensor Fabricated with Amorphous CoZrNb Film.
Sensors (Basel)
August 2025
Department of Material Science and Engineering, Korea University, Seoul 02841, Republic of Korea.
We successfully fabricated micro orthogonal fluxgate sensors using amorphous CoZrNb films. The sensor, measuring 1.5 mm × 0.
View Article and Find Full Text PDFDicyanoacetylene (NCN) Formation in the CN + Cyanoacetylene (HCN) Reaction: A Combined Crossed-Molecular Beams and Theoretical Study.
ACS Earth Space Chem
August 2025
Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto, 8, Perugia 06123, Italy.
Unsaturated nitriles are significant in prebiotic and astrochemistry. Dicyanoacetylene, in particular, is a possible precursor of uracil and was previously detected in Titan's atmosphere. Its null dipole moment hindered detection through rotational spectroscopy in interstellar clouds, and it escaped identification until recently, when its protonated form NCNH was finally detected toward the Taurus molecular cloud (TMC-1) (Agúndez et al.
View Article and Find Full Text PDF