Optomechanics with a hybrid carbon nanotube resonator

Tavernarakis, A.; Stavrinadis, Alexandros; Nowak, A.; Tsioutsios, Ioannis; Bachtold, Adrian; Verlot, P.

doi:10.1038/s41467-018-03097-z

Cited by 57 publications

(76 citation statements)

References 49 publications

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“…We should underline that the studies of the microtubes and microrolles as optical resonators have mainly concerned the tubular structures made from layers of bulk materials. In the 2D family, the carbon nanotubes have solely been investigated as a part of optomechanical and hybrid cavity systems . To the best of our knowledge, the first demonstration of a single synthesized NT acting as a resonator has been done during our studies …”

Section: Tmd Tubes As Optical Resonatorsmentioning

confidence: 99%

Excitonic Emission in van der Waals Nanotubes of Transition Metal Dichalcogenides

et al. 2019

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Nanotubes (NTs) of transition metal dichalcogenides (TMDs), were first synthesized more than a quarter of a century ago; nevertheless, many of their optical properties have so far remained basically unknown. Herein, the state of the art in the knowledge of the optical properties of TMD NTs is presented. First, general properties of multilayered crystals are evaluated, and available data on related NTs are analyzed. Then, the technology for the formation and the structural characteristics of NTs are represented, focusing on the structures synthesized by chemical transport reaction. The core of this work is the presentation of the ability of synthesized TMD NTs to emit bright photoluminescence (PL), which has been discovered recently. By means of micro-PL spectroscopy of individual tubes, we show that excitonic transitions relevant to both direct and indirect band gaps contribute to the emission spectra of the NTs despite having the dozens of monolayers in their walls. The performance of the tubes as efficient optical resonators is highlighted, where confined optical modes strongly affect the emission. Finally, a brief conclusion is presented, along with an outlook of the future studies of this novel radiative member of the NTs family, which have unique potential for different nanophotonics applications.

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Section: Tmd Tubes As Optical Resonatorsmentioning

confidence: 99%

Excitonic Emission in van der Waals Nanotubes of Transition Metal Dichalcogenides

et al. 2019

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“…Novel detection methods have been continuously developed over the years. 32 − 47 This effort has often been paid off with the improvement of sensing capabilities and the measurement of unexpected phenomena.…”

mentioning

confidence: 99%

Ultrasensitive Displacement Noise Measurement of Carbon Nanotube Mechanical Resonators

et al. 2018

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Mechanical resonators based on a single carbon nanotube are exceptional sensors of mass and force. The force sensitivity in these ultralight resonators is often limited by the noise in the detection of the vibrations. Here, we report on an ultrasensitive scheme based on a RLC resonator and a low-temperature amplifier to detect nanotube vibrations. We also show a new fabrication process of electromechanical nanotube resonators to reduce the separation between the suspended nanotube and the gate electrode down to ∼150 nm. These advances in detection and fabrication allow us to reach displacement sensitivity. Thermal vibrations cooled cryogenically at 300 mK are detected with a signal-to-noise ratio as high as 17 dB. We demonstrate force sensitivity, which is the best force sensitivity achieved thus far with a mechanical resonator. Our work is an important step toward imaging individual nuclear spins and studying the coupling between mechanical vibrations and electrons in different quantum electron transport regimes.

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“…According to Tavernarakis et al . ( 40 ), if CNT is decorated by metal nanoparticles, it might be visible in an optical microscope. However, the CNT suspension thread of the torsion balance is invisible in optical microscope.…”

Section: Methodsmentioning

confidence: 99%

On-chip torsion balances with femtonewton force resolution at room temperature enabled by carbon nanotube and graphene

et al. 2021

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The torsion balance, consisting of a rigid balance beam suspended by a fine thread, is an ancient scientific instrument, yet it is still a very sensitive force sensor to date. As the force sensitivity is proportional to the lengths of the beam and thread, but inversely proportional to the fourth power of the diameter of the thread, nanomaterials should be ideal building blocks for torsion balances. Here, we report a torsional balance array on a chip with the highest sensitivity level enabled by using a carbon nanotube as the thread and a monolayer graphene coated with Al nanofilms as the beam and mirror. It is demonstrated that the femtonewton force exerted by a weak laser can be easily measured. The balances on the chip should serve as an ideal platform for investigating fundamental interactions up to zeptonewton in accuracy in the near future.

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Optomechanics with a hybrid carbon nanotube resonator

Cited by 57 publications

References 49 publications

Excitonic Emission in van der Waals Nanotubes of Transition Metal Dichalcogenides

Excitonic Emission in van der Waals Nanotubes of Transition Metal Dichalcogenides

Ultrasensitive Displacement Noise Measurement of Carbon Nanotube Mechanical Resonators

On-chip torsion balances with femtonewton force resolution at room temperature enabled by carbon nanotube and graphene

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