@article {3907, title = {PT-like phase transition and limit cycle oscillations in non-reciprocally coupled optomechanical oscillators levitated in vacuum}, journal = {Nat. Phys.}, year = {2024}, note = {

Publisher: Nature Publishing Group

}, pages = {1{\textendash}7}, abstract = {

Nanoparticles levitated in an optical trap provide a versatile platform to study mechanical oscillators in a controlled environment with tuneable parameters. Recently, it has become possible to couple two of these optomechanical oscillators. Here we demonstrate the collective non-Hermitian dynamics of such a pair of non-conservatively coupled oscillators. We take advantage of the tunability of the optical interactions between the particles in our system and set the optical interaction between the particles to be purely non-reciprocal. By continuously varying the relative power of the trapping beams, we take the system through a transition similar to a parity{\textendash}time phase transition. A Hopf bifurcation at a critical point results in the formation of collective limit cycle oscillations, resembling those observed in phonon lasers. These coupled levitated oscillators provide a platform for exceptional point optomechanical sensing and can be extended to multi-particle systems, paving the way for the development of topological optomechanical media.

}, issn = {1745-2481}, doi = {10.1038/s41567-024-02590-1}, url = {https://www.nature.com/articles/s41567-024-02590-1} } @article {3727, title = {110 mu m thin endo-microscope for deep-brain in vivo observations of neuronal connectivity, activity and blood flow dynamics}, journal = {NATURE COMMUNICATIONS}, volume = {14}, year = {2023}, month = {APR 5}, pages = {1897}, doi = {10.1038/s41467-023-36889-z} } @article {3737, title = {Aspergillus niger as a cell factory for the production of pyomelanin, a molecule with UV-C radiation shielding activity}, journal = {Frontiers in Microbiology}, volume = {14}, year = {2023}, issn = {1664-302X}, doi = {10.3389/fmicb.2023.1233740}, url = {https://www.frontiersin.org/articles/10.3389/fmicb.2023.1233740} } @article {3773, title = {Identification of staphyloxanthin and derivates in yellow-pigmented Staphylococcus capitis subsp. capitis}, journal = {Frontiers in Microbiology}, volume = {14}, year = {2023}, doi = {10.3389/fmicb.2023.1272734}, url = {https://www.frontiersin.org/articles/10.3389/fmicb.2023.1272734} } @article {3728, title = {SERS-Tags: Selective Immobilization and Detection of Bacteria by Strain-Specific Antibodies and Surface-Enhanced Raman Scattering}, journal = {Biosensors}, volume = {13}, year = {2023}, pages = {182}, issn = {2079-6374}, doi = {10.3390/bios13020182}, url = {https://www.mdpi.com/2079-6374/13/2/182} } @article {3754, title = {Synchronization of spin-driven limit cycle oscillators optically levitated in vacuum}, journal = {Nature Communications}, volume = {14}, year = {2023}, pages = {5441}, doi = {10.1038/s41467-023-41129-5}, url = {https://doi.org/10.1038/s41467-023-41129-5} } @article {3503, title = {Endoscopic Imaging Using a Multimode Optical Fibre Calibrated with Multiple Internal References}, journal = {Photonics}, volume = {9}, year = {2022}, pages = {37}, doi = {10.3390/photonics9010037}, url = {https://www.mdpi.com/2304-6732/9/1/37} } @article {3417, title = {Raman Microspectroscopic Analysis of Selenium Bioaccumulation by Green Alga Chlorella vulgaris}, journal = {Biosensors}, volume = {11}, year = {2021}, pages = {115}, issn = {2079-6374}, doi = {10.3390/bios11040115}, url = {https://www.mdpi.com/2079-6374/11/4/115} } @article {3335, title = {Using the transient trajectories of an optically levitated nanoparticle to characterize a stochastic Duffing oscillator}, journal = {Scientific Reports}, volume = {10}, year = {2020}, pages = {14436} } @article {3189, title = {Identification of ability to form biofilm in Candida parapsilosis and Staphylococcus epidermidis by Raman spectroscopy}, journal = {Future Microbiology}, volume = {14}, year = {2019}, pages = {509-517}, abstract = {

Aim: Finding rapid, reliable diagnostic methods is a big challenge in clinical microbiology. Raman spectroscopy is an optical method used for multiple applications in scientific fields including microbiology. This work reports its potential in identifying biofilm positive strains of Candida parapsilosis and Staphylococcus epidermidis. Materials \& methods: We tested 54 S. epidermidis strains (23 biofilm positive, 31 negative) and 51 C. parapsilosis strains (27 biofilm positive, 24 negative) from colonies on Mueller-Hinton agar plates, using Raman spectroscopy. Results: The accuracy was 98.9\% for C. parapsilosis and 96.1\% for S. epidermidis. Conclusion: The method showed great potential for identifying biofilm positive bacterial and yeast strains. We suggest that Raman spectroscopy might become a useful aid in clinical diagnostics.

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Lett.}, volume = {121}, year = {2018}, pages = {23601}, doi = {10.1103/PhysRevLett.121.230601} } @article { LeiteNP18, title = {Three-dimensional holographic optical manipulation through a high-numerical-aperture soft-glass multimode fibre}, journal = {Nature Photon.}, volume = {12}, year = {2018}, pages = {33{\textendash}39}, doi = {10.1038/s41566-017-0053-8} } @article {SvakNC18, title = {Transverse spin forces and non-equilibrium particle dynamics in a circularly polarized vacuum optical trap}, journal = {Nature Commun.}, volume = {9}, year = {2018}, pages = {5453}, doi = {10.1038/s41467-018-07866-8} } @article {RebrosovsaFB17, title = {Differentiation between Staphylococcus aureus and Staphylococcus epidermidis strains using Raman spectroscopy}, journal = {Future Microbiology}, volume = {12}, year = {2017}, pages = {10}, doi = {10.2217/fmb-2016-0224} } @article { KarasekOL17, title = {Dynamics of an optically bound structure made of particles of unequal sizes}, journal = {Opt. Lett.}, volume = {42}, number = {7}, year = {2017}, pages = {1436-1439}, issn = {0146-9592}, doi = {10.1364/OL.42.001436} } @article {HrubanovaMM17, title = {Morphological and Production Changes in Planktonic and Biofilm Cells Monitored Using SEM and Raman Spectroscopy}, journal = {Microscopy and Microanalysis}, volume = {23}, year = {2017}, pages = {S1}, doi = {10.1017/S1431927617006456} } @article {RebrosovaSR17, title = {Rapid identification of staphylococci by Raman spectroscopy}, journal = {Sci. Rep.}, volume = {7}, year = {2017}, pages = {14846}, doi = {10.1038/s41598-017-13940-w} } @article { SilerSR17, title = {Thermally induced micro-motion by inflection in optical potential}, journal = {Sci. Rep.}, volume = {7}, year = {2017}, pages = {1697}, issn = {2045-2322}, doi = {10.1038/s41598-017-01848-4} } @article { SilerOL16, title = {Direct measurement of the temperature profile close to an optically trapped absorbing particle}, journal = {Opt. Lett.}, volume = {41}, year = {2016}, pages = {870-873}, doi = {10.1364/OL.41.000870} } @article { ZemanekJOpt16, title = {Noise-to-signal transition of a Brownian particle in the cubic potential: II. optical trapping geometry}, journal = {Journal of Optics}, volume = {18}, number = {6}, year = {2016}, pages = {065402}, doi = {10.1088/2040-8978/18/6/065401} } @article {SamekSENS16, title = {Quantitative Raman Spectroscopy Analysis of Polyhydroxyalkanoates Produced by Cupriavidus necator H16}, journal = {Sensors}, volume = {16}, year = {2016}, pages = {1808}, doi = {10.3390/s16111808} } @article {BaranekOE15, title = {Aberration resistant axial localization using a self-imaging of vortices}, journal = {Opt. Express}, volume = {23}, year = {2015}, pages = {15316{\textendash}15331}, doi = {10.1364/OE.23.015316} } @article { BrzobohatyOE15b, title = {Complex rotational dynamics of multiple spheroidal particles in a circularly polarized, dual beam trap}, journal = {Opt. Express}, volume = {23}, year = {2015}, pages = {7273-7287}, doi = {10.1364/OE.23.007273} } @article { KrzyzanekMM15, title = {Cryo-SEM and Raman Spectroscopy Study of the Involvement of Polyhydroxyalkanoates in Stress Response of Bacteria}, journal = {Microscopy and Microanalysis}, volume = {21}, number = {S3}, year = {2015}, pages = {183-184}, doi = {10.1017/S1431927615001713} } @article { SamekJBO15, title = {Identification of individual biofilm-forming bacterial cells using Raman tweezers}, journal = {J. Biomed. Opt.}, volume = {20}, number = {5}, year = {2015}, doi = {10.1117/1.JBO.20.5.051038} } @article { MlynarikovaSENS15, title = {Influence of Culture Media on Microbial Fingerprints Using Raman Spectroscopy}, journal = {Sensors}, volume = {15}, year = {2015}, pages = {29635-29647}, doi = {10.3390/s151129635} } @article { BrzobohatyOE15, title = {Non-spherical gold nanoparticles trapped in optical tweezers: shape matters}, journal = {Opt. Express}, volume = {23}, year = {2015}, pages = {8179-8189}, doi = {10.1364/OE.23.008179} } @article { SilerJQSRT15, title = {Optical trapping in secondary maxima of focused laser beam}, journal = {J. Quant. Spectrosc. Radiat. Transf.}, volume = {162}, year = {2015}, pages = {114 - 121}, doi = {10.1016/j.jqsrt.2015.03.003} } @article { BrzobohatySR15, title = {Three-Dimensional Optical Trapping of a Plasmonic Nanoparticle using Low Numerical Aperture Optical Tweezers}, journal = {Sci. Rep.}, volume = {5}, year = {2015}, pages = {8106}, doi = {10.1038/srep08106} } @article { SamekIJMC14, title = {Candida parapsilosis Biofilm Identification by Raman Spectroscopy}, journal = {Int. J. Mol. Sci.}, volume = {15}, year = {2014}, pages = {23924-23935}, doi = {10.3390/ijms151223924} } @article { JaklOE14, title = {Optical sorting of nonspherical and living microobjects in moving interference structures}, journal = {Opt. Express}, volume = {22}, year = {2014}, pages = {29746-29760}, doi = {10.1364/OE.22.029746} } @article { BrzobohatyNP13, title = {Experimental demonstration of optical transport, sorting and self-arrangement using a {\textquoteleft}tractor beam{\textquoteright}}, journal = {Nature Photon.}, volume = {7}, number = {2}, year = {2013}, pages = {123-127}, doi = {10.1038/nphoton.2012.332} } @article { BernatovaMol13, title = {Following the mechanisms of bacteriostatic versus bacericidal action using Raman spectroscopy}, journal = {Molecules}, volume = {18}, year = {2013}, pages = {13188-13199}, doi = {10.3390/molecules181113188} } @article { SilerJQSRT13, title = {Metallic nanoparticles in a standing wave: optical force and heating}, journal = {J. Quant. Spectrosc. Radiat. Transf.}, volume = {126}, year = {2013}, pages = {84-90}, doi = {10.1016/j.jqsrt.2012.10.005} } @article { SilerJQSRT13b, title = {Optical forces in a non-diffracting vortex beam}, journal = {J. Quant. Spectrosc. Radiat. Transf.}, volume = {126}, year = {2013}, pages = {78-83}, doi = {10.1016/j.jqsrt.2012.08.030} } @article { BrzobohatyOL13, title = {Optical manipulation of aerosol droplets using a holographic dual and single beam trap}, journal = {Opt. Lett.}, volume = {38}, number = {22}, year = {2013}, pages = {4601-4604}, doi = {10.1364/OL.38.004601} } @article { SilerOE12, title = {Optical forces induced behavior of a particle in a non-diffracting vortex beam}, journal = {Opt. Express}, volume = {20}, year = {2012}, pages = {24304-24319}, doi = {10.1364/OE.20.024304} } @article { SilerAPL12, title = {Speed enhancement of multi-particle chain in a traveling standing wave}, journal = {Appl. Phys. Lett.}, volume = {100}, year = {2012}, pages = {051103}, doi = {10.1063/1.3680234} } @article { SilerJOPT11, title = {Parametric study of optical forces acting upon nanoparticles in a single, or a standing, evanescent wave}, journal = {J. Opt.}, volume = {13}, year = {2011}, pages = {044016:1{\textendash}9}, doi = {10.1088/2040-8978/13/4/044016} } @article { BrzobohatyOE11, title = {Static and dynamic behavior of two optically bound microparticles in a standing wave}, journal = {Opt. Express}, volume = {19}, year = {2011}, pages = {19613{\textendash}19626}, doi = {10.1364/OE.19.019613} } @article { BrzobohatyOE10, title = {Experimental and theoretical determination of optical binding forces}, journal = {Opt. Express}, volume = {18}, number = {24}, year = {2010}, pages = {25389{\textendash}25402}, issn = {1094-4087}, doi = {10.1364/OE.18.025389} } @article { SilerNJP10, title = {Particle jumps between optical traps in a one-dimensional optical lattice}, journal = {New. J. Phys.}, volume = {12}, year = {2010}, pages = {083001:1{\textendash}20}, doi = {10.1088/1367-2630/12/8/083001} } @article { SilerNJP08, title = {Surface delivery of a single nanoparticle under moving evanescent standing-wave illumination}, journal = {New. J. Phys.}, volume = {10}, year = {2008}, pages = {113010}, issn = {1367-2630}, doi = {10.1088/1367-2630/10/11/113010} } @article { SilerOC07, title = {Optical forces acting on a nanoparticle placed into an interference evanescent field}, journal = {Opt. Commun.}, volume = {275}, year = {2007}, pages = {409{\textendash}420}, doi = {10.1016/j.optcom.2007.03.074} } @article {SilerAPB06, title = {Optical forces generated by evanescent standing waves and their usage for sub-micron particle delivery}, journal = {Appl. Phys. B}, volume = {84}, year = {2006}, pages = {157{\textendash}165}, doi = {10.1007/s00340-006-2235-9} } @article {CizmarAPB06, title = {An optical nanotrap array movable over a milimetre range}, journal = {Appl. Phys. B}, volume = {84}, year = {2006}, pages = {197{\textendash}203}, doi = {10.1007/s00340-006-2221-2} } @article {CizmarPRB06, title = {Optical sorting and detection of sub-micron objects in a motional standing wave}, journal = {Phys. Rev. B}, volume = {74}, year = {2006}, pages = {035105:1-6}, doi = {10.1103/PhysRevB.74.035105} }