Results 21 to 30 of about 3,649,359 (324)

Extremely High-Quality Periodic Structures on ITO Film Efficiently Fabricated by Femtosecond Pulse Train Output from a Frequency-Doubled Fabry–Perot Cavity

Nanomaterials, 2023
This study developed a novel frequency-doubled Fabry–Perot cavity method based on a femtosecond laser of 1030 nm, 190 fs, 1 mJ, and 1 kHz. The time interval (60–1000 ps) and attenuation ratio (0.5–0.9) between adjacent sub-pulses of the 515 nm pulse ...
Qilin Jiang, Yuchan Zhang, Yufeng Xu, Shian Zhang, Donghai Feng, Tianqing Jia, Zhenrong Sun, Jianrong Qiu   +7 more
doaj   +1 more source

Micropillar Resonators for Optomechanics in the Extremely High 19-95-GHz Frequency Range.

Physical Review Letters, 2017
Strong confinement, in all dimensions, and high mechanical frequencies are highly desirable for quantum optomechanical applications. We show that GaAs/AlAs micropillar cavities fully confine not only photons but also extremely high frequency (19-95 GHz ...
S. Anguiano, A. Bruchhausen, B. Jusserand, I. Favero, F. Lamberti, F. Lamberti, L. Lanco, I. Sagnes, A. Lemaître, N. Lanzillotti-Kimura, P. Senellart, A. Fainstein   +11 more
semanticscholar   +1 more source

An Outbreak of Aspergillus Species in Response to Environmental Conditions in Serbia [PDF]

Pesticidi i Fitomedicina, 2013
The frequency and incidence of A. flavus and A. niger on barley, maize, soybean, sunflowerand wheat grain, the abundance of European corn borer (Ostrinia nubilalis) mothsand their interaction depending on weather conditions in the 2008-2012 period were ...
Jelena Lević, Snežana Gošić-Dondo, Dragica Ivanović, Slavica Stanković, Vesna Krnjaja, Aleksandra Bočarov-Stančić, Ana Stepanić   +6 more
doaj   +1 more source

Seasonal Temperature Extremes in the North Eurasian Regions Depending on ENSO Phase Transitions

Atmosphere, 2022
Seasonal anomalies of surface air temperature were analyzed for the North Eurasian regions in mid-latitudes using long-term data from the end of the 19th century with an assessment of El Niño Southern Oscillation (ENSO) effects.
Igor I. Mokhov, Alexander V. Timazhev
doaj   +1 more source

Classical demonstration of frequency dependent noise ellipse rotation using Optomechanically Induced Transparency

, 2014
Cavities with extremely narrow linewidth of 10-100 Hz are required for realizing frequency dependent squeezing to enable gravitational wave detectors to surpass the free mass standard quantum limit over a broad frequency range.
Blair, David G., Chen, Xu, Ju, Li, Ma, Yiqiu, Qin, Jiayi, Zhao, Chunnong   +5 more
core   +1 more source

A weak instability in an expanding universe? [PDF]

, 2002
We use higher derivative classical gravity to study the nonlinear coupling between the cosmological expansion of the universe and metric oscillations of Planck frequency and very small amplitude. We derive field equations at high orders in the derivative
A.A. Starobinsky, Bob Holdom, G.T. Horowitz, H. Collins, J. Simon, J. Simon, John F. Donoghue, S.W. Hawking, V.A. Rubakov   +8 more
core   +4 more sources

Estimating exposure to extremely low frequency magnetic fields near high-voltage power lines and assessment of possible increased cancer risk among Slovenian children and adolescents

Radiology and Oncology, 2023
Some previous research showed that average daily exposure to extremely low frequency (ELF) magnetic fields (MF) of more than 0.3 or 0.4 μT could potentially increase risk of childhood leukaemia.
Zagar Tina, Valic Blaz, Kotnik Tadej, Korat Sara, Tomsic Sonja, Zadnik Vesna, Gajsek Peter   +6 more
doaj   +1 more source

ciliaFA : a research tool for automated, high-throughput measurement of ciliary beat frequency using freely available software [PDF]

, 2012
Background: Analysis of ciliary function for assessment of patients suspected of primary ciliary dyskinesia (PCD) and for research studies of respiratory and ependymal cilia requires assessment of both ciliary beat pattern and beat frequency.
C O’Callaghan, CL O’Callaghan, CM Smith, CW Wilson, EE Davis, G Mantovani, JH Sisson, JJ Ballenger, JR Kennedy, M Ryser, MA Chilvers, MA Chilvers, RA Hirst, RA Hirst, RA Hirst, S Dimova, TJ Mitchell, WA Stannard, WI Lee, WS Rasband   +19 more
core   +1 more source

Vibrational ratchets

, 2006
Transport in a one-dimensional symmetric device can be activated by the combination of thermal noise and a bi-harmonic drive. For the study case of an overdamped Brownian particle diffusing on a periodic one-dimensional substrate, we distinguish two ...
Borromeo, M., Marchesoni, F.
core   +1 more source

Tuning the Mott transition in a Bose-Einstein condensate by multi-photon absorption [PDF]

, 2006
We study the time-dependent dynamics of a Bose-Einstein condensate trapped in an optical lattice. Modeling the system as a Bose-Hubbard model, we show how applying a periodic driving field can induce coherent destruction of tunneling.
Creffield, C. E., Monteiro, T. S.
core   +3 more sources