Tuning Nonlinear Mechanical Mode Coupling in GaAs Nanowires Using Cross-Section Morphology Control

Foster, Andrew P.; Maguire, J. K.; Bradley, J. P.; Lyons, Thomas P.; Krysa, A. B.; Fox, A. M.; Skolnick, M. S.; Wilson, L. R.

doi:10.1021/acs.nanolett.6b02994

Cited by 15 publications

(13 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Semiconductor nanowires (NWs) are promising structures for applications not only in photonics and electronics but also in nanoelectromechanical systems (NEMS) due to their small size, low mass, and high crystalline quality. In the conventional “top‐down” fabrication technique for NEMS beam resonators, electron‐beam lithography and chemical etching to a bulk wafer are used to define the lateral beam shapes, which is followed by sacrificial etching to release the suspended structure .…”

Section: Introductionmentioning

confidence: 99%

Novel Fabrication Technique of Suspended Nanowire Devices for Nanomechanical Applications

Tomita

Sasaki

Tateno

et al. 2019

Physica Status Solidi (b)

View full text Add to dashboard Cite

Semiconductor nanowires (NWs) are one of the most promising nanoscale materials for use in nanoelectromechanical systems. However, the accurate control of their position and alignment during fabrication has been a persistent challenge. Herein, inkjet-printing and trenches filled with PMGI are used for the precise assembly of suspended NWs. The method allows us to accurately control the positioning processes, and a fabricated InAs NW mechanical resonator shows electrically excited and detected resonance at 15.7 MHz with the quality factor of 10 000 at 2.2 K. The resonance frequency can be tuned by applying a voltage to an air-gap bottom gate, and Duffing nonlinearity is confirmed with high-amplitude actuation. This accurate and flexible fabrication method is applicable to highly integrated device designs, such as those for nanoelectromechanical networks and acoustic metamaterials.

show abstract

Section: Introductionmentioning

confidence: 99%

Novel Fabrication Technique of Suspended Nanowire Devices for Nanomechanical Applications

Tomita

Sasaki

Tateno

et al. 2019

Physica Status Solidi (b)

View full text Add to dashboard Cite

show abstract

“…This pioneering work shed light on the unique role of multiple mechanical mode [8][9][10] on precise measurement for physical quantities [11]. In addition to conventional force detection [12][13][14][15][16][17], displacement measurement [18] and small mass sensing [19][20][21][22][23] including single molecule identification [24], analysis of multiple mechanical eigenmodes could also give critical information of vectorial detection [25][26][27], mechanical resonator cooling [28], nonlinear coupling between two modes [29,30], frequency fluctuations [31] and energy decay [32].…”

Section: Introductionmentioning

confidence: 99%

Determining the direction of a nanowire's flexural vibrations by micro-lens optical fiber interferometer

Fu,

Deng,

Zou

et al. 2017

Preprint

View full text Add to dashboard Cite

Nanowires are perfect transducers for ultra-sensitive detections of force and mass. For small mass sensing, recent advances in detecting more properties than their masses with high sensitivity for absorbed particles onto a nanowire rely on identifications of two orthogonal flexural vibration modes of the nanowire. The directions of these orthogonal flexural vibrations with respect to measurement direction are crucial parameters of vibration modes. However, previous method, which determines a nanowire's vibration direction using thermal vibrations, requires simultaneously detecting of two orthogonal flexural vibrations of the nanowire with sufficient sensitivity. In this work, we propose and realize a method for the determination of directions of a nanowire's flexural vibrations by micro-lens optical fiber interferometer. Our method combines the light interference and light scattering of the nanowire. It does not require detecting a pair of degenerated orthogonal flexural vibration modes. Therefore, our method is expected to have wide usages in characterizing nanowire's vibrations and their applications.

show abstract

“…The capacity of the transduction mechanism to provide access to this nonlinear regime enables applications based on the singular dynamics of nanomechanical resonators in this regime. 11,36,37 The behavior of the peak amplitudes of the lower-and upperfrequency doublet components as a function of the piezo voltage driving amplitude is plotted in Figure 4b. The amplitude of both peaks shows a linear dependence with the driving amplitude in a range up to around 300 mV of driving voltage, resulting in a dynamic range of around 50 dB.…”

mentioning

confidence: 99%

“…Some of the most significant ones are based on the splitting of each flexural mode in a doublet of nearly degenerate orthogonal oscillations, which occurs for both single-clamp , and double-clamp nanowires . This effect has indeed already been explored for innovative applications such as simultaneous mass and elasticity sensing of adsorbates, , vectorial force sensing/imaging, − and the exploration of complex dynamics − or optomechanical back-action effects. , …”

mentioning

confidence: 99%

Optical Transduction for Vertical Nanowire Resonators

et al. 2020

View full text Add to dashboard Cite

We describe an optical transduction mechanism to measure the flexural mode vibrations of vertically aligned nanowires on a flat substrate with high sensitivity, linearity, and ease of implementation. We demonstrate that the light reflected from the substrate when a laser beam strikes it parallel to the nanowires is modulated proportionally to their vibration, so that measuring such modulation provides a highly efficient resonance readout. This mechanism is applicable to single nanowires or arrays without specific requirements regarding their geometry or array pattern, and no fabrication process besides the nanowire generation is required. We show how to optimize the performance of this mechanism by characterizing the split flexural modes of vertical silicon nanowires in their full dynamic range and up to the fifth mode order. The presented transduction approach is relevant for any application of nanowire resonators, particularly for integrating nanomechanical sensing in functional substrates based on vertical nanowires for biological applications. N anomechanical sensing with resonant devices based on semiconductor nanowires (SCNWs) is currently consolidated as one of the most fruitful research lines involving this kind of nanostructure. SCNWs are highly useful as resonators for high-performance applications because of their unique structural and dynamic properties. The former imply an exceptional combination of very low mass, single-crystal quality, and controllable dimensions and geometry. 1 Regarding dynamic properties, the characteristic high aspect ratio of SCNWs results in flexural modes which are extremely sensitive to external perturbations of a different nature. 2 On one hand, this facilitates detecting their thermomechanical vibrations, as the effect of temperature alone results in relatively large vibration amplitudes; on the other hand, it also simplifies external driving schemes, as external forces of a different nature can be used to drive flexural vibrations even beyond the fundamental mode. These properties provide SCNW resonators with singular sensing capacities which are otherwise impossible to achieve with other structures. Some of the most significant ones are based on the splitting of each flexural mode in a doublet of nearly degenerate orthogonal oscillations, which occurs for both single-clamp 3,4 and double-clamp nanowires. 5 This effect has indeed already been explored for innovative applications such as simultaneous mass and elasticity sensing of adsorbates, 4,6 vectorial force sensing/imaging, 7−9 and the exploration of complex dynamics 10−13 or optomechanical back-action effects. 14,15 Exploiting the unique properties of SCNW resonators for developing an equally high performance and practical functionalities requires an efficient conversion of the nanowire vibrations into readable signals with high sensitivity, linearity, and minimum constraints regarding the nanowires' arrangement. Different transduction schemes have been demonstrated so far to that end, but arguably all of them have ...

show abstract

Tuning Nonlinear Mechanical Mode Coupling in GaAs Nanowires Using Cross-Section Morphology Control

Cited by 15 publications

References 36 publications

Novel Fabrication Technique of Suspended Nanowire Devices for Nanomechanical Applications

Novel Fabrication Technique of Suspended Nanowire Devices for Nanomechanical Applications

Determining the direction of a nanowire's flexural vibrations by micro-lens optical fiber interferometer

Optical Transduction for Vertical Nanowire Resonators

Contact Info

Product

Resources

About