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High-\Qm{} mechanical resonators are crucial for applications where low noise and long coherence time are required, as mirror suspensions, quantum cavity optomechanical devices, or nanomechanical sensors. Tensile strain in the material…

We report on experimental demonstration of a new type of nanoelectromechanical resonators based on black phosphorus crystals. Facilitated by a highly efficient dry transfer technique, crystalline black phosphorus flakes are harnessed to…

Mesoscale and Nanoscale Physics · Physics 2015-04-07 Zenghui Wang , Hao Jia , Xuqian Zheng , Rui Yang , Zefang Wang , G. J. Ye , X. H. Chen , Jie Shan , Philip X. -L. Feng

The applications of nanomechanical resonators range from biomolecule mass sensing to hybrid quantum interfaces. Their performance is often limited by internal material damping, which can be greatly reduced by using crystalline materials.…

Mesoscale and Nanoscale Physics · Physics 2025-04-24 Leo Sementilli , Daniil M. Lukin , Hope Lee , Joshua Yang , Erick Romero , Jelena Vučković , Warwick P. Bowen

Current micro nanomechanical system are usually based on rigid crystalline semiconductors that normally have high quality factors but lack adaptive responses to variable frequencies, a capability ubiquitous for communications in the…

The emerging two-dimensional (2D) materials exhibit a wide range of electronic properties, ranging from insulating hexagonal boron nitride, semiconducting transition metal dichalcogenides such as molybdenum disulfide, to semi-metallic…

Mesoscale and Nanoscale Physics · Physics 2014-12-01 Fengnian Xia , Han Wang , Di Xiao , Madan Dubey , Ashwin Ramasubramaniam

We demonstrate integrated optomechanical circuits with high mechanical quality factors prepared from nanocrystalline diamond thin films. Using chemomechanical polishing, the RMS surface roughness of as grown polycrystalline diamond films is…

Two-dimensional (2D) nanomaterials derived from non-van der Waals solids are promising due to their fantastic physical and chemical properties, but it remains challenging to obtain 2D atomic laminates with high stability owing to the strong…

Materials Science · Physics 2023-02-16 Zhiguo Du , Zongju Cheng , Qi Zhao , Haiyang Wang , Qi Zhu , Hao Chen , Xiao Chen , Bin Li , Shubin Yang

Nanostructuring materials at small scales enables control over their physical properties, revealing behaviors not observed at larger dimensions. This strategy is particularly effective in two-dimensional (2D) materials, where surface…

We deal with the photoacoustic imaging modality using dielectric nanoparticles as contrast agents. Exciting the heterogeneous tissue, localized in a bounded domain $\Omega$, with an electromagnetic wave, at a given incident frequency,…

Analysis of PDEs · Mathematics 2020-03-09 Ahcene Ghandriche , Mourad Sini

Though significant advances have been made in the field of metal nanostructures, researchers are yet to synthesize one atom thin two-dimensional 2D gold nanostructures. We report, for the first time, a technique to synthesize one atom thin…

The rising complexity of cutting-edge cryogenic systems is currently imposing challenging technical constraints to the monitoring of ultra-cold temperatures through standard commercially available sensors. Among different alternative…

Polyaniline and graphene nanoplatelets (PANI-GNP) nanocomposites are synthesized by in situ oxidative polymerization of polyaniline using an oxidizing agent, ammonium peroxy disulphate (APS). The mass of GNP in the nanocomposites varied by…

Reduced dimensionality leads to emergent phenomena in quantum materials and there is a need for accelerated materials discovery of nanoscale quantum materials in reduced dimensions. Thermomechanical nanomolding is a rapid synthesis method…

Nanomechanical resonators with high quality factors (\Qm{}) enable mechanics-based quantum technologies, in particular quantum sensing and quantum transduction. High-\Qm{} nanomechanical resonators in the kHz to MHz frequency range can be…

Graphene and related two-dimensional (2D) materials associate remarkable mechanical, electronic, optical and phononic properties. As such, 2D materials are promising for hybrid systems that couple their elementary excitations (excitons,…

Mesoscale and Nanoscale Physics · Physics 2020-11-06 Xin Zhang , Kevin Makles , Léo Colombier , Dominik Metten , Hicham Majjad , Pierre Verlot , Stéphane Berciaud

Recent advances in nanotechnology have led to the development of nano-electro-mechanical systems (NEMS) such as nanomechanical resonators, which have recently received significant attention from the scientific community. This has not only…

Mesoscale and Nanoscale Physics · Physics 2011-05-11 Kilho Eom , Harold S. Park , Dae Sung Yoon , Taeyun Kwon

We report free-standing atomic crystals that are strictly 2D and can be viewed as individual atomic planes pulled out of bulk crystals or as unrolled single-wall nanotubes. By using micromechanical cleavage, we have prepared and studied a…

Materials Science · Physics 2007-05-23 K. S. Novoselov , D. Jiang , T. Booth , V. V. Khotkevich , S. M. Morozov , A. K. Geim

Atomically thin 2-dimensional (2D) mechanical resonators are expected to be highly sensitive force sensor and high performance nano-electro-mechanical systems because of their excellent electrical and mechanical properties. For practical…

Applied Physics · Physics 2018-11-20 Taichi Inoue , Yuta Mochizuki , Kuniharu Takei , Takayuki Arie , Seiji Akita

The emerging new paradigm of technologies, the internet of things, entails a process of device miniaturization to combine several functional components, such as sensors, actuators, and powering elements, in a single individual on-chip…

Nanoporous graphene (NPG), consisting of ordered arrays of nanopores separated by graphene nanoribbons was recently realized using a bottom-up synthesis method (Science 360(2018), 199). In this work we accordingly explored the mechanical…

Mesoscale and Nanoscale Physics · Physics 2019-03-12 Bohayra Mortazavi , Mohamed E. Madjet , Masoud Shahrokhi , Said Ahzi , Xiaoying Zhuang , Timon Rabczuk