Cavity optocapillaries

Maayani, Shai; Martín, Leopoldo L.; Kaminski, Samuel; Carmon, Tal

doi:10.1364/optica.3.000552

Cited by 35 publications

(33 citation statements)

References 33 publications

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“…Our results should find practical applications in the emergent research directions of liquid optomechanics [36][37][38][39][40][41] and hybrid metamaterial structures [42][43][44]. Thus far, optomechanical structures have mostly been implemented by using the solid-state technology [45] because modern electronic, photonic and phononic devices and circuits are based on solid-state platforms.…”

Section: Discussionmentioning

confidence: 95%

Harmonic and subharmonic waves on the surface of a vibrated liquid drop

Maksymov

Pototsky

2019

Phys. Rev. E

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Liquid drops and vibrations are ubiquitous in both everyday life and technology, and their combination can often result in fascinating physical phenomena opening up intriguing opportunities for practical applications in biology, medicine, chemistry and photonics. Here we study, theoretically and experimentally, the response of pancake-shaped liquid drops supported by a solid plate that vertically vibrates at a single, low acoustic range frequency. When the vibration amplitudes are small, the primary response of the drop is harmonic at the frequency of the vibration. However, as the amplitude increases, the half-frequency subharmonic Faraday waves are excited parametrically on the drop surface. We develop a simple hydrodynamic model of a one-dimensional liquid drop to analytically determine the amplitudes of the harmonic and the first superharmonic components of the linear response of the drop. In the nonlinear regime, our numerical analysis reveals an intriguing cascade of instabilities leading to the onset of subharmonic Faraday waves, their modulation instability and chaotic regimes with broadband power spectra. We show that the nonlinear response is highly sensitive to the ratio of the drop size and Faraday wavelength. The primary bifurcation of the harmonic waves is shown to be dominated by a period-doubling bifurcation, when the drop height is comparable with the width of the viscous boundary layer. Experimental results conducted using low-viscosity ethanol and high-viscocity canola oil drops vibrated at 70 Hz are in qualitative agreement with the predictions of our modelling. * Electronic address: apototskyy@swin.edu.au

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Section: Discussionmentioning

confidence: 95%

Harmonic and subharmonic waves on the surface of a vibrated liquid drop

Maksymov

Pototsky

2019

Phys. Rev. E

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“…As opposed to surface capillary waves that travel near the water phase boundary (Fig. 2c and 24 – 26 , 28 , 29 , 37 ), we show oscillations of the fiber that are similar to the first mode of a guitar string. These capillary vibrations involve a transverse motion of the fiber itself, originating from internal flows 38 .…”

Section: Introductionmentioning

confidence: 65%

Light and Capillary Waves Propagation in Water Fibers

Douvidzon

Maayani

Martín

et al. 2017

Sci Rep

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The confinement of light and sound, while they are traveling in fibers, enables a variety of light-matter interactions. Therefore, it is natural to ask if fibers can also host capillary waves. Capillary waves are similar to those we see when throwing a stone into a puddle. Such capillary waves are prohibited in microfluidic devices where the liquid is bounded by solid walls. In contrast, we have fabricated fibers, which are made entirely from water and are suspended in air. The water fiber can therefore move, e.g. in a resonant mode that reassembles the motion of a guitar string. In our experiment, light guided through the water fiber allows optical interrogation of is capillary oscillations. Co-confining two important oscillations in nature: capillary and electromagnetic, might allow a new type of devices called Micro-Electro-Capillary-Systems [MECS]. The softness of MECS is a million times higher when compared to what the current solid-based technology permits, which accordingly improves MECS response to minute forces such as small changes in acceleration. Additionally, MECS might allow new ways to optically interrogate viscosity and surface tension, as well as their changes caused by introducing an analyte into the system.

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“…6(a)] is about three orders of magnitude lower than that of the correspondent acoustic mode [ Fig. 6(b)] of the same droplet [114,115].…”

Section: Fig 5: (A) Theoretical Response Of a 100-nm-radius Air Bubbmentioning

confidence: 83%

“…However, in liquid surfaces, the restoring force relies on surface tension [94]. Moreover, the speed of the capillary wave is three orders of magnitude lower than the speed of the acoustic waves in the same liquid [114,115]. Because of all these distinctions, the frequency of capillary oscillation of a liquid droplet [ Fig.…”

Section: Fig 5: (A) Theoretical Response Of a 100-nm-radius Air Bubbmentioning

confidence: 99%

Coupling light and sound: giant nonlinearities from oscillating bubbles and droplets

Maksymov

Greentree

2019

Nanophotonics

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Nonlinear optical processes are vital for fields including telecommunications, signal processing, data storage, spectroscopy, sensing, and imaging. As an independent research area, nonlinear optics began with the invention of the laser, because practical sources of intense light needed to generate optical nonlinearities were not previously available. However the high power requirements of many nonlinear optical systems limit their use, especially in portable or medical applications, and so there is a push to develop new materials and resonant structures capable of producing nonlinear optical phenomena with low-power light emitted by inexpensive and compact sources. Acoustic nonlinearities, especially giant acoustic nonlinear phenomena in gas bubbles and liquid droplets, are much stronger than their optical counterparts. Here, we suggest employing acoustic nonlinearities to generate new optical frequencies, thereby effectively reproducing nonlinear optical processes without the need for laser light. We critically survey the current literature dedicated to the interaction of light with nonlinear acoustic waves and highly-nonlinear oscillations of gas bubbles and liquid droplets. We show that the conversion of acoustic nonlinearities into optical signals is possible with low-cost incoherent light sources such as lightemitting diodes, which would usher new classes of low-power photonic devices that are more affordable for remote communities and developing nations, or where there are demanding requirements on size, weight and power. . 1: (a) Generation of new optical frequencies via a nonlinear optical interaction. High-power monochromatic laser light interacts with the nonlinear optical medium, e.g. a dielectric microresonator, to generate new optical frequencies [9]. (b, c) The nonlinear properties of sound can be used to generate optical nonlinearities without the need for high-power laser light. Low-power light couples to a sound wave via a deformable fluid, e.g. gas bubble or liquidmetal nanoparticle, exploiting strong nonlinear acoustic effects. This converts acoustic frequencies to the optical domain, effectively reproducing the result of the nonlinear optical interaction in (a). Images from www.freeimages.com and www.dreamstime.com. FIG

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Cavity optocapillaries

Cited by 35 publications

References 33 publications

Harmonic and subharmonic waves on the surface of a vibrated liquid drop

Harmonic and subharmonic waves on the surface of a vibrated liquid drop

Light and Capillary Waves Propagation in Water Fibers

Coupling light and sound: giant nonlinearities from oscillating bubbles and droplets

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