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gaussian beam  (Coherent Corp)


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    Structured Review

    Coherent Corp gaussian beam
    Gaussian Beam, supplied by Coherent Corp, used in various techniques. Bioz Stars score: 98/100, based on 3038 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/gaussian+beam/OBIS/arxiv__2601__05198-184-33-42
    Average 98 stars, based on 3038 article reviews
    gaussian beam - by Bioz Stars, 2026-10
    98/100 stars

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    Related Articles

    Evaporation:

    Article Title: Enhancement of the ‘tractor-beam’ pulling force on an optically bound structure
    Article Snippet: .. The tractor beam is formed via retro-reflection of a wide Gaussian beam (VERDI V18, Coherent, Inc., λ 0 =532 nm, w 0 =35 μm, P =3.5 W in the sample plane) at a dielectric mirror, which is fabricated via electron beam evaporation (alternating SiO 2 and TiO 2 layers) and supports the colloidal suspension of 820-nm polystyrene spheres (Duke Scientific Corporation, Palo Alto, CA, USA). ..

    Suspension:

    Article Title: Enhancement of the ‘tractor-beam’ pulling force on an optically bound structure
    Article Snippet: .. The tractor beam is formed via retro-reflection of a wide Gaussian beam (VERDI V18, Coherent, Inc., λ 0 =532 nm, w 0 =35 μm, P =3.5 W in the sample plane) at a dielectric mirror, which is fabricated via electron beam evaporation (alternating SiO 2 and TiO 2 layers) and supports the colloidal suspension of 820-nm polystyrene spheres (Duke Scientific Corporation, Palo Alto, CA, USA). ..

    other:

    Article Title: Harvesting information to control non-equilibrium states of active matter
    Article Snippet: The harmonic potential is induced by focusing inside the cell a linearly polarized Gaussian beam (785 nm, CW 110 mW laser diode, Coherent OBIS) through a high numerical aperture objective (Nikon Plan Apo VC, 60×, NA= 1.20 water immersion, Obj1 on Fig. 5).

    Article Title: Harvesting information to control nonequilibrium states of active matter
    Article Snippet: The harmonic potential is induced by focusing inside the cell a linearly polarized Gaussian beam (785 nm, CW 110 mW laser diode, Coherent OBIS) through a high numerical aperture objective (Nikon Plan Apo VC, 60×, NA = 1.20 water immersion, Obj1 in Fig. 5).

    Article Title: Consistent thermodynamics reconstructed from transitions between nonequilibrium steady-states
    Article Snippet: Experimental platform - Our setup (sketched in Fig. 5) consists in optically trapping, in a harmonic potential, a single dielectric bead (3 μm polystyrene sphere) in a fluidic cell filled with deionized water at room temperature T = 296 K. The harmonic potential is induced by focusing inside the cell a linearly polarized Gaussian beam (785 nm, CW 110 mW laser diode, Coherent OBIS) through a high numerical aperture objective (Nikon Plan Apo VC, 60×, NA= 1.20 water immersion, Obj1 on Fig. 5).

    Control:

    Article Title: Fluctuation-response relation for a nonequilibrium system with resolved Markovian embedding
    Article Snippet: .. The linear relation between κ and VAOM is calibrated (lower right inset), allowing to control precisely the stiffness of the potential. harmonic potential is induced by focusing inside the cell a linearly polarized Gaussian beam (785 nm, CW 110 mW laser diode, Coherent OBIS) through a high numerical aperture (NA) objective (Nikon Plan Apo VC, 60×, NA= 1.20 water immersion). .. An additional force in the form of radiation pressure is applied to the sphere using a time-dependent fraction of the light-beam emitted by an additional high-power laser (800 nm, CW 5 W Ti:Sa laser, Spectra Physics 3900S).



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    Image Search Results


    a Photograph of a mouse wearing the microscope headpiece. b Brightfield micrograph of the custom micro-axicon at the LMA-12 fiber tip (top) and ring pattern imaged at ~5-mm distance from the fiber tip (bottom). c , Schematic of miniBB2p showing key elements and excitation beam path (red lines). d Imaging a volume requires a single 2D scan of a Bessel focus but a stack of 2D scans of a Gaussian focus. e Lateral and axial point spread functions measured with 500-nm fluorescent beads. f Image of a ~ 80-μm thick volume of Thy1-GFP-M brain slice by miniBB2p (left) and an image stack at 3-μm step collected by a tabletop Gaussian beam 2PM from the same volume, with structures colored by depth (right). g zoom-in imaging of the boxed areas in f ; white arrowheads denote dendritic spines that were more clearly visualized by Bessel focus. h , Imaging the spontaneous activity of neurons in anterior cingulate cortex (ACC) expressing GCaMP7f in a free-moving mouse with miniBB2p. i Spatial distribution of 1015 neurons extracted by Suite2P in h , randomly colored for visualization. j Example calcium signals from neurons circled in h . k – l Imaging the same volume in awake head-fixed mouse by the tabletop 2PM: Gaussian imaging stack at 3-μm step with structures colored by depth ( k ); neural activity imaging in the top, middle, and bottom layers of the volume, the imaging depth and number of neurons identified by Suite2P are listed at right ( l ). Data in b and e-h are from single representative experiments ( n = 3 fibers in b ; n = 10 beads in e ; n = 5 slices in f , g ; n = 5 animals in h ).

    Journal: Nature Communications

    Article Title: High-throughput two-photon volumetric brain imaging in freely moving mice

    doi: 10.1038/s41467-025-66922-2

    Figure Lengend Snippet: a Photograph of a mouse wearing the microscope headpiece. b Brightfield micrograph of the custom micro-axicon at the LMA-12 fiber tip (top) and ring pattern imaged at ~5-mm distance from the fiber tip (bottom). c , Schematic of miniBB2p showing key elements and excitation beam path (red lines). d Imaging a volume requires a single 2D scan of a Bessel focus but a stack of 2D scans of a Gaussian focus. e Lateral and axial point spread functions measured with 500-nm fluorescent beads. f Image of a ~ 80-μm thick volume of Thy1-GFP-M brain slice by miniBB2p (left) and an image stack at 3-μm step collected by a tabletop Gaussian beam 2PM from the same volume, with structures colored by depth (right). g zoom-in imaging of the boxed areas in f ; white arrowheads denote dendritic spines that were more clearly visualized by Bessel focus. h , Imaging the spontaneous activity of neurons in anterior cingulate cortex (ACC) expressing GCaMP7f in a free-moving mouse with miniBB2p. i Spatial distribution of 1015 neurons extracted by Suite2P in h , randomly colored for visualization. j Example calcium signals from neurons circled in h . k – l Imaging the same volume in awake head-fixed mouse by the tabletop 2PM: Gaussian imaging stack at 3-μm step with structures colored by depth ( k ); neural activity imaging in the top, middle, and bottom layers of the volume, the imaging depth and number of neurons identified by Suite2P are listed at right ( l ). Data in b and e-h are from single representative experiments ( n = 3 fibers in b ; n = 10 beads in e ; n = 5 slices in f , g ; n = 5 animals in h ).

    Article Snippet: We recorded neuronal activity in vivo using miniBB2p and later acquired the high-resolution 3D morphological data from the same imaging volume using the tabletop Gaussian-beam 2PM with a 0.8 NA objective (CFI Apo NIR 40×, Nikon) on the same day.

    Techniques: Microscopy, Imaging, Slice Preparation, Activity Assay, Expressing