Photonic Nanojet‐Mediated Optogenetics
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Science"
DOI: 10.1002/advs.202104140
Abstract: Optogenetics has become a widely used technique in neuroscience research, capable of controlling neuronal activity with high spatiotemporal precision and cell‐type specificity. Expressing exogenous opsins in the selected cells can induce neuronal activation upon light… read more here.
Keywords: photonic nanojet; power; mediated optogenetics; nanojet mediated ... See more keywords
Photonic nanojet assisted enhancement of Raman signal: Effect of refractive index contrast
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.4994944
Abstract: We discuss the enhancement of Raman signals using a photonic nanojet generated by dielectric microspheres. The highly confined field of the nanojet leads to an order of magnitude enhancement of the Raman signal from the… read more here.
Keywords: raman signal; enhancement raman; photonic nanojet; refractive index ... See more keywords
Numerical investigations on photonic nanojet mediated surface enhanced Raman scattering and fluorescence techniques.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.019822
Abstract: Finite element method simulations have been carried out on the photonic nanojet (PNJ) mediated surface enhanced Raman scattering (SERS) technique for the first time, and this technique has been found to provide (i) better Raman… read more here.
Keywords: raman scattering; surface enhanced; mediated surface; fluorescence ... See more keywords
Overcoming refractive index limit of mesoscale light focusing by means of specular-reflection photonic nanojet.
Sign Up to like & getrecommendations! Published in 2020 at "Optics letters"
DOI: 10.1364/ol.398367
Abstract: The physical origin of subwavelength photonic nanojet in specular-reflection mode (s-PNJ) is theoretically considered. This specific type of photonic nanojet (PNJ) emerges upon double focusing of a plane optical wave by a transparent dielectric microparticle… read more here.
Keywords: specular reflection; refractive index; photonic nanojet; pnj ... See more keywords
To generate a photonic nanojet outside a high refractive index microsphere illuminated by a Gaussian beam.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.459001
Abstract: A non-resonant, concentrated, narrow beam of light emerging from an illuminated microlens is called a photonic nanojet (PNJ). According to currently prevailing opinion, microspheres and microcylinders are only able to generate a PNJ in their… read more here.
Keywords: index; photonic nanojet; refractive index; pnj ... See more keywords
Step-Index (Semi-Immersed) Model for Photonic Nanojet and Experimental Characterization via Near-Field Optical Microscopy with Microcylinder
Sign Up to like & getrecommendations! Published in 2023 at "Nanomaterials"
DOI: 10.3390/nano13061033
Abstract: Experimental limitations such as design complexity and low optical throughput have prevented photonic nanojet (PNJ) and photonic hook (PH) measurements from demonstrating and characterizing the implementation of narrow intense electromagnetic beams generated from dielectric microelements… read more here.
Keywords: index; photonic nanojet; step index; microscopy ... See more keywords