3D nanomechanical mapping of subcellular and sub-nuclear structures of living cells by multi-harmonic AFM with long-tip microcantilevers
Sign Up to like & getrecommendations! Published in 2022 at "Scientific Reports"
DOI: 10.1038/s41598-021-04443-w
Abstract: Recent developments such as multi-harmonic Atomic Force Microscopy (AFM) techniques have enabled fast, quantitative mapping of nanomechanical properties of living cells. Due to their high spatiotemporal resolution, these methods provide new insights into changes of… read more here.
Keywords: microscopy; sub nuclear; nuclear structures; afm ... See more keywords
Local excitation and valley polarization in graphene with multi-harmonic pulses.
Sign Up to like & getrecommendations! Published in 2022 at "Faraday discussions"
DOI: 10.1039/d2fd00017b
Abstract: We elucidate the mechanism of strong laser pulse excitation in pristine graphene with multi-harmonic pulses, linearly polarized parallel to the line connecting the two different Dirac points in the Brillouin zone and with a maximal… read more here.
Keywords: excitation; valley; graphene multi; harmonic pulses ... See more keywords
A capacitance reduction method of hybrid modular multilevel converter based on multi‐harmonic voltage injection
Sign Up to like & getrecommendations! Published in 2024 at "IET Power Electronics"
DOI: 10.1049/pel2.12722
Abstract: In a modular multilevel converter (MMC) system, the sub‐module (SM) capacitors account for a large proportion of cost, volume and weight. Increasing modulation index (m) is an effective method to reducing the capacitance. Traditional MMC… read more here.
Keywords: method; mmc; harmonic voltage; voltage injection ... See more keywords
Multi-harmonic phononic frequency comb generation in capacitive CMOS-MEMS resonators
Sign Up to like & getrecommendations! Published in 2024 at "Applied Physics Letters"
DOI: 10.1063/5.0197773
Abstract: Phononic frequency combs (PFCs) have emerged as a pivotal technology in precision measurements and advanced signal processing, harnessing the power of discrete, evenly spaced frequency lines. Their expansion into the realm of microelectromechanical systems (MEMS)… read more here.
Keywords: phononic frequency; generation; multi harmonic; mems resonators ... See more keywords
Nanomechanical mapping in air or vacuum using multi-harmonic signals in tapping mode atomic force microscopy.
Sign Up to like & getrecommendations! Published in 2020 at "Nanotechnology"
DOI: 10.1088/1361-6528/ab9390
Abstract: We present a method by which weak multi-harmonic signals acquired during a normal tapping mode (amplitude modulated) AFM scan of a sample in air or vacuum with standard microcantilevers can be used to map quantitatively… read more here.
Keywords: microscopy; tapping mode; air vacuum; multi harmonic ... See more keywords