We report on the observation of nonlinear dynamics in driven-dissipative Bose-Hubbard dimers using a pair coupled fiber ring resonators coherently driven by single laser beam. comprehensively explore optical switching arising when scanning detuning undriven cavity and demonstrate key role played regime. By driving photonic dimer out equilibrium, we observe occurrence robust self-switching oscil...

Abstract Floriculture is a promising activity and has great economic importance. In this context, the cultivation of Lilium pumilum Redouté stands out. However, one main challenges flower farmers face that large part products lost before reaching final consumer, due to postharvest losses. Such losses can be minimized by adopting some techniques, such as use conditioning solution (pulsing), whic...

Abstract Spontaneous locking of the phase a coherent phonon source to an external reference is demonstrated in deeply sideband-unresolved optomechanical system. The high-amplitude mechanical oscillations are driven by anharmonic modulation radiation pressure force that result from absorption-mediated free-carrier/temperature limit cycle, i.e., self-pulsing. Synchronization observed when pump la...

BACKGROUND Ultrasound can cause microbubble destruction. If microbubbles are administered as a continuous infusion, then their destruction within the myocardium and measurement of their myocardial reappearance rate at steady state will provide a measure of mean myocardial microbubble velocity. Conversely, measurement of their myocardial concentration at steady state will provide an assessment o...

BACKGROUND Pretreatment of lignocellulosic biomass generates a number of undesired degradation products that can inhibit microbial metabolism. Two of these compounds, the furan aldehydes 5-hydroxymethylfurfural (HMF) and 2-furaldehyde (furfural), have been shown to be an impediment for viable ethanol production. In the present study, HMF and furfural were pulse-added during either the glucose o...

We report an experimental study of low-frequency (~10 kHz) self-pulsing of the output intensity in a high-concentration erbium-doped fiber laser. We suggest that the fast intensity fluctuations caused by multimode and polarization instabilities play the role of an external noise source, leading to low-frequency auto-oscillations through a coherence resonance scenario.