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We present a high-sensitivity measurement technique for mechanical nanoresonators. Due to intrinsic nonlinear effects, different flexural modes of a nanobeam can be coupled while driving each of them on resonance. This mode-coupling scheme…

Mesoscale and Nanoscale Physics · Physics 2015-12-02 M. Defoort , K. J. Lulla , C. Blanc , O. Bourgeois , A. D. Armour , E. Collin

Nitroaromatic compounds (NACs) are used in various industrial applications including dyes, inks, herbicides, pharmaceuticals, and explosives. Due to their toxicity and environmental persistence, reliable detection and monitoring methods are…

A nanofabricated regular array of coupled gold nano-pillars is employed to detect local indices of refraction of different liquids using a shift of an antisymmetric plasmon resonance peak observed in the reflection spectra. The peak…

Recent advancements in IoT technologies have underscored the importance of using sensor data to understand environmental contexts effectively. This paper introduces a novel embedded system designed to autonomously label sensor data directly…

Machine Learning · Computer Science 2024-07-17 Tianheng Ling , Islam Mansour , Chao Qian , Gregor Schiele

In recent years, compact nanodosimetric detectors based on ion multiplication in low-pressure gas have been developed and gained attention in the scientific community. These detectors use strong electric fields to collect and multiply…

The promising field of organic electronics has ushered in a new era of biosensing technology, offering a promising frontier for applications in both medical diagnostics and environmental monitoring. This review paper provides a…

Applied Physics · Physics 2023-11-08 Jyoti Bala Kaushal , Pratima Raut , Sanjay Kumar

Rapid progress in plasmonics biosensors and immunosensors brings many methodologies to employ resonant subwavelength structures associated with the physics of multipoles, Fano resonances, and analogous moments. Here, we review a broad range…

Applied Physics · Physics 2018-09-18 Arash Ahmadivand , Burak Gerislioglu

Nanomechanical resonator based on levitated particle exhibits unique advantages in the development of ultrasensitive electric field detector. We demonstrate a three-dimensional, high-sensitivity electric field measurement technology using…

Applied Physics · Physics 2022-08-30 Shaocong Zhu , Zhenhai Fu , Xiaowen Gao , Cuihong Li , Zhiming Chen , Yingying Wang , Xingfan Chen , Huizhu Hu

Vibrating nano- and micromechanical resonators have been the subject of research aiming at ultrasensitive mass sensors for mass spectrometry, chemical analysis and biomedical diagnosis. Unfortunately, their merits diminish dramatically in…

Instrumentation and Detectors · Physics 2015-09-30 E. Gil-Santos , C. Baker , D. T. Nguyen , W. Hease , A. Lemaître , S. Ducci , G. Leo , I. Favero

Ultrasound sensors have wide applications across science and technology. However, improved sensitivity is required for both miniaturisation and increased spatial resolution. Here, we introduce cavity optomechanical ultrasound sensing, where…

Quantum Physics · Physics 2019-01-17 Sahar Basiri-Esfahani , Ardalan Armin , Stefan Forstner , Warwick P. Bowen

Tactile sensing represents a crucial technique that can enhance the performance of robotic manipulators in various tasks. This work presents a novel bioinspired neuromorphic vision-based tactile sensor that uses an event-based camera to…

Robotics · Computer Science 2024-03-18 Omar Faris , Mohammad I. Awad , Murana A. Awad , Yahya Zweiri , Kinda Khalaf

Outstanding functional tunability underpinning metal-organic framework (MOF) confers a versatile platform to contrive next-generation chemical sensors, optoelectronics, energy harvesters and converters. We report a rare exemplar of a porous…

Materials Science · Physics 2019-08-27 Abhijeet K. Chaudhari , Ha Jin Kim , Intaek Han , Jin-Chong Tan

Measuring local temperature with a spatial resolution on the order of a few nanometers has a wide range of applications from semiconductor industry over material to life sciences. When combined with precision temperature measurement it…

Intra-body communication is a method that utilizes the human body as a broadcast biological medium for electromagnetic signals to inter-connect wireless body sensors. Study of the collaboration between electromagnetic waves and human cells…

Signal Processing · Electrical Eng. & Systems 2018-10-02 Mona Youssef , Fatima Ghanim , Noor Imad , Ayesha Alqasim , Raed Shubair

Optical-field emission from nanostructured solids such as subwavelength nanoantennas can be leveraged to create sub-femtosecond, PHz-scale electronics for optical-field detection. One application that is of particular interest is the…

In recent years, advances in biotechnology, nanotechnology and materials science have led to development of revolutionizing applications in Internet of Things (IoT). In particular, the interconnection of nanomaterials, nanoimplants and…

Emerging Technologies · Computer Science 2022-02-28 Seyda Senturk , Ibrahim Kok , Fatmana Senturk

Nanoscale optical thermometry is a promising non-contact route for measuring local temperature with both high sensitivity and spatial resolution. In this work, we present a deterministic optical thermometry technique based on quantum…

Despite being extremely old concepts, plasmonics and surface plasmon resonance-based biosensors have been increasingly popular in the recent two decades due to the growing interest in nanooptics and are now of relevant significance in…

Optics · Physics 2023-04-19 Giuseppina Simone

Photodetectors are typically based on photocurrent generation from electron-hole pairs in semiconductor structures and on bolometry for wavelengths that are below bandgap absorption. In both cases, resonant plasmonic and nanophotonic…

Mesoscale and Nanoscale Physics · Physics 2016-06-13 Kelly W. Mauser , Slobodan Mitrovic , Seyoon Kim , Dagny Fleischman , Harry A. Atwater

We present a theoretical investigation on possible selection of olfactory receptors (ORs) as sensing components of nanobiosensors. Accordingly, we generate the impedance spectra of the rat OR I7 in the native and activated state and analyze…

Biomolecules · Quantitative Biology 2011-02-17 Eleonora Alfinito , Cecilia Pennetta , Lino Reggiani