Modulation of multiple photon energies by use of surface plasmons

Passian, Ali; Lereu, Aude L.; Arakawa, E. T.; Wig, A.; Thundat, Thomas; Ferrell, T. L.

doi:10.1364/ol.30.000041

Cited by 38 publications

(15 citation statements)

References 4 publications

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“…A previous study on gold nanowire damage predicts a cooling time of ~ 10 μs [35]. The silica fibre core in our gold-coated fibre tip is a thermal insulator, which cooling as compared to solid metal nanotips, consistent with studies of plasmon decay in the Kretschmann configuration [36] and nanoparticles [37]. To study the electron pulse duration a femtosecond laser pulse was launched into the optical fibre.…”

Section: Pulsed Electron Emissionsupporting

confidence: 80%

Surface plasmon enhanced fast electron emission from metallised fibre optic nanotips

et al. 2020

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Physical mechanisms of electron emission from fibre optic nanotips, namely, tunnelling, multi-photon, and thermionic emission, either prevent fast switching or require intense laser fields. Time-resolved electron emission from nano-sized sources finds applications ranging from material characterisation to fundamental studies of quantum coherence. We present a nano-sized electron source capable of fast-switching (⩽1 ns) that can be driven with low-power femtosecond lasers. The physical mechanism that can explain emission at low laser power is surface plasmon enhanced above-threshold photoemission. An electron emission peak is observed and provides support for resonant plasmonic excitation. The electron source is a metal-coated optical fibre tapered into a nano-sized tip. The fibre is flexible and back illuminated facilitating ease of positioning. The source operates with a few nJ per laser pulse, making this a versatile emitter that enables nanometrology, multisource electron-lithography and scanning probe microscopy.

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Section: Pulsed Electron Emissionsupporting

confidence: 80%

Surface plasmon enhanced fast electron emission from metallised fibre optic nanotips

et al. 2020

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“…SWaP of processor units and related devices are expected to improve by employing the next generation of processors and on-chip integrated electronics [200] based on CNT [47,188,198,199,201,202,203], plasmonics [41,93,145,204,205,206,207], nano-optics, quantum computing [45,131,208], silicon photonics [144,145,209,210,211], optical interconnects (as opposed to metal interconnects) [212], and switches. In cases where the losses in plasmonic systems [213,214,215] may be an issue, all-dielectric resonances are emerging as an alternative approach [137].…”

Section: Nanosystems and Nanoscience: From Edge Sensing To Edge Comentioning

confidence: 99%

Nanosystems, Edge Computing, and the Next Generation Computing Systems

Passian

Imam

2019

Sensors

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It is widely recognized that nanoscience and nanotechnology and their subfields, such as nanophotonics, nanoelectronics, and nanomechanics, have had a tremendous impact on recent advances in sensing, imaging, and communication, with notable developments, including novel transistors and processor architectures. For example, in addition to being supremely fast, optical and photonic components and devices are capable of operating across multiple orders of magnitude length, power, and spectral scales, encompassing the range from macroscopic device sizes and kW energies to atomic domains and single-photon energies. The extreme versatility of the associated electromagnetic phenomena and applications, both classical and quantum, are therefore highly appealing to the rapidly evolving computing and communication realms, where innovations in both hardware and software are necessary to meet the growing speed and memory requirements. Development of all-optical components, photonic chips, interconnects, and processors will bring the speed of light, photon coherence properties, field confinement and enhancement, information-carrying capacity, and the broad spectrum of light into the high-performance computing, the internet of things, and industries related to cloud, fog, and recently edge computing. Conversely, owing to their extraordinary properties, 0D, 1D, and 2D materials are being explored as a physical basis for the next generation of logic components and processors. Carbon nanotubes, for example, have been recently used to create a new processor beyond proof of principle. These developments, in conjunction with neuromorphic and quantum computing, are envisioned to maintain the growth of computing power beyond the projected plateau for silicon technology. We survey the qualitative figures of merit of technologies of current interest for the next generation computing with an emphasis on edge computing.

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“…An acoustic transducer such as a microphone, a cantilever, or a quartz tuning fork is employed to convert the acoustic signal into an electric signal. PAS signals can also be collected by a thin metal foil [10] or film [11]. The advantages of PAS are compact size, simplicity of use, and wide dynamic range.…”

Section: Introductionmentioning

confidence: 99%

Application of Micro Quartz Tuning Fork in Trace Gas Sensing by Use of Quartz-Enhanced Photoacoustic Spectroscopy

Lin

Huang

Kan

et al. 2019

Sensors

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A novel quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor based on a micro quartz tuning fork (QTF) is reported. As a photoacoustic transducer, a novel micro QTF was 3.7 times smaller than the usually used standard QTF, resulting in a gas sampling volume of ~0.1 mm3. As a proof of concept, water vapor in the air was detected by using 1.39 μm distributed feedback (DFB) laser. A detailed analysis of the performance of a QEPAS sensor based on the micro QTF was performed by detecting atmosphere H2O. The laser focus position and the laser modulation depth were optimized to improve the QEPAS excitation efficiency. A pair of acoustic micro resonators (AmRs) was assembled with the micro QTF in an on-beam configuration to enhance the photoacoustic signal. The AmRs geometry was optimized to amplify the acoustic resonance. With a 1 s integration time, a normalized noise equivalent absorption coefficient (NNEA) of 1.97 × 10−8 W·cm−1·Hz−1/2 was achieved when detecting H2O at less than 1 atm.

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Modulation of multiple photon energies by use of surface plasmons

Cited by 38 publications

References 4 publications

Surface plasmon enhanced fast electron emission from metallised fibre optic nanotips

Surface plasmon enhanced fast electron emission from metallised fibre optic nanotips

Nanosystems, Edge Computing, and the Next Generation Computing Systems

Application of Micro Quartz Tuning Fork in Trace Gas Sensing by Use of Quartz-Enhanced Photoacoustic Spectroscopy

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