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Single-ion mass identification is important for atomic and nuclear physics experiments on ions produced with low yields. Cooling the ion to ultra-low temperatures by interacting with a laser-cooled ion will enhance the precision of the…

A prerequisite for laser cooling a molecular anion, which has not been achieved so far, is the precise knowledge of the relevant transition frequencies in the cooling scheme. To determine these frequencies we present a versatile method that…

原子物理 · 物理学 2022-08-31 Markus Nötzold , Robert Wild , Christine Lochmann , Roland Wester

Gas sensors based on transition metal dichalcogenides (TMDCs) have attracted much attention from a new perspective involving light-assisted or gate-voltage operation. However, their combined roles as regards the gas sensing performance and…

Sensors based on the phenomenon of surface plasmon resonance have limited sensitivity, up to 123 degree/Refractive Index Unit, which restricts their applicability in detecting subtle changes gin biological media (around 10-5 RIU). To…

光学 · 物理学 2026-01-12 Rostyslav Terekhov , Zoya Eremenko , Sergii Kulish

An ultrafast photoemission-based low-energy electron diffraction experiment with monolayer surface sensitivity is presented. In a first experiment on tin-phthalocyanine adsorbed on graphite, we demonstrate a time resolution of approx. 100…

介观与纳米尺度物理 · 物理学 2024-04-23 Hermann Erk , Carl Eric Jensen , Stephan Jauernik , Michael Bauer

We present a first-principles calculation on the rate and efficiency of F\"orster resonance energy transfer (FRET) from a donor to an acceptor when they are located in the hotspots of nanoparticle clusters. Nonlocal effect has been…

光学 · 物理学 2017-12-29 Jun Ren , Tong Wu , Bing Yang , Xiangdong Zhang

Interfacial adhesion is caused by intermolecular forces that only occur between surfaces at nano-scale contact (NSC) i.e., 0.1-0.4nm. To evaluate NSC and its influence on adhesion, F\"orster resonance energy transfer (FRET) spectroscopy has…

材料科学 · 物理学 2023-01-27 Mónica Gaspar Simões , Robert Schennach , Ulrich Hirn

A preconcentrating surface-enhanced Raman scattering (SERS) sensor for the analysis of liquid-soaked tissue, tiny liquid droplets and thin liquid films without the necessity to collect the analyte is reported. The SERS sensor is based on a…

介观与纳米尺度物理 · 物理学 2017-11-27 Longjian Xue , Wei Xie , Leonie Driessen , Katrin F. Domke , Yong Wang , Sebastian Schlücker , Stanislav N. Gorb , Martin Steinhart

On-chip measurement of thermo-optic coefficient (TOC) of samples along with on-chip temperature measurements can be used to compensate for thermal fluctuation induced noise in refractometry using integrated photonic sensors. In this article…

仪器与探测器 · 物理学 2017-10-11 Prashanth R Prasad , Shankar K Selvaraja , Manoj Varma

F\"orster resonance energy transfer (FRET) is a quantum mechanical phenomenon involving the non-radiative transfer of energy between coupled electric dipoles. Due to the strong dependence of FRET on the distance between the dipoles, it is…

化学物理 · 物理学 2024-12-04 David Frost , Keisha Cook , Hugo Sanabria

Hydrogen sensors have been prepared using nickel oxide (NiO) and lithium-doped nickel oxide (NiO:Li) thin films, deposited on glass substrates by the sol-gel spin coating technique. The surface morphology, structure, optical and electrical…

材料科学 · 物理学 2014-12-23 I. Sta , M. Jlassi , M. Kandyla , M. Hajji , P. Koralli , R. Allagui , M. Kompitsas , H. Ezzaouia

The phenomenon of Forster Resonance Energy Transfer, commonly used to measure the distances between fluorophore molecules and to study interactions between fluorescent-tagged proteins in life sciences, can also be applied in…

生物物理 · 物理学 2018-02-15 Kamil Solarczyk , Krzysztof Wojcik , Pawel Kulakowski

The development of next generation medicines demand more sensitive and reliable label free sensing able to cope with increasing needs of multiplexing and shorter times to results. Field effect transistor-based biosensors emerge as one of…

应用物理 · 物理学 2019-05-22 Serena Rollo , Dipti Rani , Renaud Leturcq , Wouter Olthuis , César Pascual García

The development of a selective, membrane-based ion separation technology may prove useful in a wide range of applications such as water treatment, battery recycling, ion specific chemical sensors, extraction of valuable metals from sea…

应用物理 · 物理学 2024-10-22 Alon Herman , Joel W. Ager , Shane Ardo , Gideon Segev

Biosensors are frequently used nowadays for the sake of their attractive capabilities. Because of their high accuracy and precision, they are more and more used in the medical sector. Natural receptors are mostly used, but their use have…

细胞行为 · 定量生物学 2021-02-17 Juul Goossens , Gilles Oudebrouckx , Seppe Bormans , Thijs Vandenryt , Ronald Thoelen

In this letter we introduce a new type of infrared sensor, based on thermocouple nanoantennas, which enables the energy detection and gathering in the mid-infrared region. The proposed detector combines the Seebeck effect, as a transduction…

We demonstrate a novel MIR methane sensor shifting measurement wavelength to SWIR (1.55$\mu$m) by using non-linear interferometry. The technique exploits the interference effects seen in three-wave mixing when pump, signal, and idler modes…

量子物理 · 物理学 2024-05-22 Arthur C. Cardoso , Jinghan Dong , Haichen Zhou , Siddarth K. Joshi , John G. Rarity

Chlorophylls and carotenoids, key components of photosynthetic systems, are proposed for molecular communications at the nanoscale with the mechanism of resonance energy transfer. Both types of pigments are introduced focusing on their…

生物物理 · 物理学 2021-03-26 Aleksandra Orzechowska , Joanna Fiedor , Pawel Kulakowski

Heat transfer in liquids is a very challenging problem as it combines the competing effect of high frequency oscillations, which dominate liquid heat capacity, and diffusive motion, which enables transport macroscopic flow. This issue is…

材料科学 · 物理学 2025-05-20 Cillian Cockrell , Aleksandra Dragović

This work demonstrates efficient Forster resonance energy transfer (FRET) between ensembles of shallow nitrogen-vacancy (NV) centers located 7 nm and 9 nm below a single-crystal diamond surface and a naturally occurring fluorophore, namely…