Mapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors

In canonical optomechanical systems, mechanical vibrations are dynamically encoded on an optical probe field, which reciprocally exerts a backaction force. Because of the weak single-photon coupling strength achieved with macroscopic oscillators, most of the existing experiments were conducted with...

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Autores principales:	Francesco Fogliano, Benjamin Besga, Antoine Reigue, Philip Heringlake, Laure Mercier de Lépinay, Cyril Vaneph, Jakob Reichel, Benjamin Pigeau, Olivier Arcizet
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/a54bc8f028584792b816fa350126865d
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spelling	oai:doaj.org-article:a54bc8f028584792b816fa350126865d2021-12-02T16:38:22ZMapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors10.1103/PhysRevX.11.0210092160-3308https://doaj.org/article/a54bc8f028584792b816fa350126865d2021-04-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.021009http://doi.org/10.1103/PhysRevX.11.021009https://doaj.org/toc/2160-3308In canonical optomechanical systems, mechanical vibrations are dynamically encoded on an optical probe field, which reciprocally exerts a backaction force. Because of the weak single-photon coupling strength achieved with macroscopic oscillators, most of the existing experiments were conducted with large photon numbers to achieve sizable effects, thereby hiding the original optomechanical nonlinearity. To increase the optomechanical interaction, we make use of subwavelength-sized ultrasensitive suspended nanowires inserted in the mode volume of a fiber-based microcavity. By scanning the nanowire within the cavity mode volume and measuring its impact on the cavity mode, we obtain a map of the 2D optomechanical interaction. Then, by using the toolbox of nanowire-based force-sensing protocols, we explore the backaction of the optomechanical interaction and map the optical force field experienced by the nanowire. These measurements also allow us to demonstrate the possibility to detect variations of the mean intracavity photon number smaller than unity. This implementation should also allow us to enter the promising regime of cavity optomechanics, where a single intracavity photon can displace the oscillator by more than its zero-point fluctuations, which will open novel perspectives in the field.Francesco FoglianoBenjamin BesgaAntoine ReiguePhilip HeringlakeLaure Mercier de LépinayCyril VanephJakob ReichelBenjamin PigeauOlivier ArcizetAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 2, p 021009 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Francesco Fogliano Benjamin Besga Antoine Reigue Philip Heringlake Laure Mercier de Lépinay Cyril Vaneph Jakob Reichel Benjamin Pigeau Olivier Arcizet Mapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors
description	In canonical optomechanical systems, mechanical vibrations are dynamically encoded on an optical probe field, which reciprocally exerts a backaction force. Because of the weak single-photon coupling strength achieved with macroscopic oscillators, most of the existing experiments were conducted with large photon numbers to achieve sizable effects, thereby hiding the original optomechanical nonlinearity. To increase the optomechanical interaction, we make use of subwavelength-sized ultrasensitive suspended nanowires inserted in the mode volume of a fiber-based microcavity. By scanning the nanowire within the cavity mode volume and measuring its impact on the cavity mode, we obtain a map of the 2D optomechanical interaction. Then, by using the toolbox of nanowire-based force-sensing protocols, we explore the backaction of the optomechanical interaction and map the optical force field experienced by the nanowire. These measurements also allow us to demonstrate the possibility to detect variations of the mean intracavity photon number smaller than unity. This implementation should also allow us to enter the promising regime of cavity optomechanics, where a single intracavity photon can displace the oscillator by more than its zero-point fluctuations, which will open novel perspectives in the field.
format	article
author	Francesco Fogliano Benjamin Besga Antoine Reigue Philip Heringlake Laure Mercier de Lépinay Cyril Vaneph Jakob Reichel Benjamin Pigeau Olivier Arcizet
author_facet	Francesco Fogliano Benjamin Besga Antoine Reigue Philip Heringlake Laure Mercier de Lépinay Cyril Vaneph Jakob Reichel Benjamin Pigeau Olivier Arcizet
author_sort	Francesco Fogliano
title	Mapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors
title_short	Mapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors
title_full	Mapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors
title_fullStr	Mapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors
title_full_unstemmed	Mapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors
title_sort	mapping the cavity optomechanical interaction with subwavelength-sized ultrasensitive nanomechanical force sensors
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/a54bc8f028584792b816fa350126865d
work_keys_str_mv	AT francescofogliano mappingthecavityoptomechanicalinteractionwithsubwavelengthsizedultrasensitivenanomechanicalforcesensors AT benjaminbesga mappingthecavityoptomechanicalinteractionwithsubwavelengthsizedultrasensitivenanomechanicalforcesensors AT antoinereigue mappingthecavityoptomechanicalinteractionwithsubwavelengthsizedultrasensitivenanomechanicalforcesensors AT philipheringlake mappingthecavityoptomechanicalinteractionwithsubwavelengthsizedultrasensitivenanomechanicalforcesensors AT lauremercierdelepinay mappingthecavityoptomechanicalinteractionwithsubwavelengthsizedultrasensitivenanomechanicalforcesensors AT cyrilvaneph mappingthecavityoptomechanicalinteractionwithsubwavelengthsizedultrasensitivenanomechanicalforcesensors AT jakobreichel mappingthecavityoptomechanicalinteractionwithsubwavelengthsizedultrasensitivenanomechanicalforcesensors AT benjaminpigeau mappingthecavityoptomechanicalinteractionwithsubwavelengthsizedultrasensitivenanomechanicalforcesensors AT olivierarcizet mappingthecavityoptomechanicalinteractionwithsubwavelengthsizedultrasensitivenanomechanicalforcesensors
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Mapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors

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