Dynamical Backaction in an Ultrahigh-Finesse Fiber-Based Microcavity

Rochau, Felix; Arribas, Irene Sánchez; Brieussel, Alexandre; Stapfner, Sebastian; Hunger, David; Weig, Eva M.

doi:10.1103/physrevapplied.16.014013

Cited by 18 publications

(30 citation statements)

References 47 publications

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“…Small effective mirror diameters however lead to clipping losses that increase with the separation of the fiber mirrors and reduce the finesse. Record finesses for FFPCs on the order of some 100000 have been reported [4,26].…”

Section: Ffpc Devicesmentioning

confidence: 99%

“…FFPCs have been used in optomechanical experiments because of their ability to realize miniaturized cavities corresponding to small that at the same time still allow for a simple integration of mechanical elements, because of the accessible cavity volume. Most of the realizations using FFPCs can be attributed to the so-called membranein-the-middle (MIM) type experiments [26,32,77,78] (see Fig. 9a), where a partially transmitting element divides the cavity into two sub-cavities.…”

Section: Cavity Optomechanics In Ffpcsmentioning

confidence: 99%

“…Smaller effective masses enable larger zero point motions x ZPM = √ ℏ∕2m eff and correspondingly a larger vacuum optomechanical coupling strength g 0 ∕2 = x ZPM ⋅ ∕ x that characterizes the interaction strength on a single photon level. The reduction of the mechanical oscillator size has led to realizations using onchip SiN - [26] and nanowire oscillators [81] (see Fig. 9c), with the latter being used to map out the optical mode, position-dependent coupling and scattering.…”

Section: Cavity Optomechanics In Ffpcsmentioning

confidence: 99%

“…Whilst FFPCs like macroscopic optical cavities can make use of large intracavity photon numbers n c (up to Watts of optical power in high finesse cavities) to boost the linearized optomechanical coupling strength g = √ n c ⋅ g 0 , other platforms experience limitations caused by heating and thermal instabilities. As FFPCs can be integrated to on-chip platforms [31], be used to interface very miniaturized mechanical elements, and as they are able to reach large finesse together with strong optomechanical coupling strengths [26], they continue to be a favorable platform for cavity optomechanical experiments, especially superior where large intracavity optical powers are required.…”

Section: Cavity Optomechanics In Ffpcsmentioning

confidence: 99%

“…The optical field extends on both sides of the mechanical oscillator, which is clamped outside the mode volume of the optical mode. Examples for this geometry are [26,32,77,78]. b Depicts a setup using density waves in liquid helium as the mechanical resonance as demonstrated in [79,80].…”

Section: Cavity-enhanced Sensing and Other Applicationsmentioning

confidence: 99%

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Achievements and perspectives of optical fiber Fabry–Perot cavities

et al. 2022

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Fabry–Perot interferometers have stimulated numerous scientific and technical applications ranging from high-resolution spectroscopy over metrology, optical filters, to interfaces of light and matter at the quantum limit and more. End facet machining of optical fibers has enabled the miniaturization of optical Fabry–Perot cavities. Integration with fiber wave guide technology allows for small yet open devices with favorable scaling properties including mechanical stability and compact mode geometry. These fiber Fabry–Perot cavities (FFPCs) are stimulating extended applications in many fields including cavity quantum electrodynamics, optomechanics, sensing, nonlinear optics and more. Here we summarize the state of the art of devices based on FFPCs, provide an overview of applications and conclude with expected further research activities.

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Section: Ffpc Devicesmentioning

confidence: 99%

Section: Cavity Optomechanics In Ffpcsmentioning

confidence: 99%

Section: Cavity Optomechanics In Ffpcsmentioning

confidence: 99%

Section: Cavity Optomechanics In Ffpcsmentioning

confidence: 99%

Section: Cavity-enhanced Sensing and Other Applicationsmentioning

confidence: 99%

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Achievements and perspectives of optical fiber Fabry–Perot cavities

et al. 2022

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Cavity Optomechanical Bistability with an Ultrahigh Reflectivity Photonic Crystal Membrane

Zhou,

Bao,

Gorman

et al. 2023

Laser & Photonics Reviews

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Photonic crystal (PhC) membranes patterned with sub‐wavelength periods offer a unique combination of high reflectivity, low mass, and high mechanical quality factor. Using a PhC membrane as one mirror of a Fabry–Perot cavity, a finesse as high as is demonstrated, corresponding to a record high PhC reflectivity of and an optical quality factor of . The fundamental mechanical frequency is 426 kHz, more than twice the optical linewidth, placing it firmly in the resolved‐sideband regime required for ground‐state optical cooling. The mechanical quality factor in vacuum is , allowing values of the single‐photon cooperativity as high as . Optomechanical bistability is easily observed as hysteresis in the cavity transmission. As the input power is raised well beyond the bistability threshold, dynamical backaction induces strong mechanical oscillation above 1 MHz, even in the presence of air damping. This platform will facilitate advances in optomechanics, precision sensing, and applications of optomechanically‐induced bistability.

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Mechanical Mode Imaging of a High-Q Hybrid hBN/Si₃N₄ Resonator

et al. 2023

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We image and characterize the mechanical modes of a 2D drum resonator made of hBN suspended over a high-stress Si3N4 membrane. Our measurements demonstrate hybridization between various modes of the hBN resonator and those of the Si3N4 membrane. The measured resonance frequencies and spatial profiles of the modes are consistent with finite-element simulations based on idealized geometry. Spectra of the thermal motion reveal that, depending on the degree of hybridization with modes of the heavier and higher-quality-factor Si3N4 membrane, the quality factors and the motional mass of the hBN drum modes can be shifted by orders of magnitude. This effect could be exploited to engineer hybrid drum/membrane modes that combine the low motional mass of 2D materials with the high quality factor of Si3N4 membranes for optomechanical or sensing applications.

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Dynamical Backaction in an Ultrahigh-Finesse Fiber-Based Microcavity

Cited by 18 publications

References 47 publications

Achievements and perspectives of optical fiber Fabry–Perot cavities

Achievements and perspectives of optical fiber Fabry–Perot cavities

Cavity Optomechanical Bistability with an Ultrahigh Reflectivity Photonic Crystal Membrane

Mechanical Mode Imaging of a High-Q Hybrid hBN/Si₃N₄ Resonator

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Dynamical Backaction in an Ultrahigh-Finesse Fiber-Based Microcavity

Cited by 18 publications

References 47 publications

Achievements and perspectives of optical fiber Fabry–Perot cavities

Achievements and perspectives of optical fiber Fabry–Perot cavities

Cavity Optomechanical Bistability with an Ultrahigh Reflectivity Photonic Crystal Membrane

Mechanical Mode Imaging of a High-Q Hybrid hBN/Si3N4 Resonator

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Product

Resources

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Mechanical Mode Imaging of a High-Q Hybrid hBN/Si₃N₄ Resonator