Results 171 to 180 of about 515 (250)

Mini‐Review: Angular Scattering and Directional Effects in Tip‐Enhanced Raman Spectroscopy

open access: yesJournal of Raman Spectroscopy, EarlyView.
Mini‐review: Angular scattering and directional effects in tip‐enhanced Raman spectroscopy. Felix Schneider, David Baschnagel, Tim Parker, Yang Zhao, Alfred J. Meixner*, Dai Zhang*. This mini‐review examines angular scattering and directional effects in tip‐enhanced Raman spectroscopy (TERS), emphasizing their importance for quantitative interpretation
Felix Schneider   +5 more
wiley   +1 more source

From freshness to preservation: insights into processing and storage impacts on purple passion fruit volatilome

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Purple passion fruit is highly appreciated for its distinctive sweet flavour, low acidity, and aromatic profile, making it a desirable choice for fresh consumption and juice production. To ensure microbiological safety and extend shelf life, juice products typically undergo thermal pasteurization, which can alter their ...
Alexandre MA Fonseca   +4 more
wiley   +1 more source

Biodegradable HPMC–chitosan film for moisture retention and quality preservation in fresh‐cut mango

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Replacing conventional plastics with biodegradable solutions that control moisture loss in fresh‐cut produce is a strategic need. This study developed hydroxypropylmethylcellulose (HPMC) and chitosan (CS) films plasticised with glycerol (Gly) and evaluated their use as sealing lids for fresh‐cut mango. RESULTS The selected monolayer
Angelucia Gonçalves Parente   +7 more
wiley   +1 more source

Nearly 180° Field‐of‐View Metalens for Miniaturized Imaging Systems

open access: yesLaser &Photonics Reviews, EarlyView.
A compact, single‐layer metalens is developed with an ultra‐wide field of view of ≈180 degrees. Utilizing a unique quadratic phase profile, this metalens overcomes traditional issues like axial and color dispersion. It operates across red, green, and blue wavelengths with non‐polarized light, promising enhanced imaging capabilities for integration into
Azhar Javed Satti   +9 more
wiley   +1 more source

Customized Scattering‐Robust 3D Speckle Correlation for Improved Resolution and Imaging Depth in Scattering Tissue

open access: yesLaser &Photonics Reviews, EarlyView.
A scattering‐robust 3D speckle customization method is proposed to enhance both resolution and imaging depth in scattering tissue. Applied to light‐field microscopy (LFM), it improves 3D resolution by over twofold under strong optical scattering. In wide‐field fluorescence imaging, it enables a substantial improvement in imaging depth, allowing imaging
Yue Xing   +4 more
wiley   +1 more source

Enhanced Dichroic Coloration Through Void‐Particle Induced Interference in Randomly Distributed Cu2O Octahedrons on Glass Substrate

open access: yesLaser &Photonics Reviews, EarlyView.
In randomly distributed Cu2O octahedron particles on a glass substrate, the absence of particles in certain areas generates a distinct “void‐particle induced interference” phenomenon. This effect results in notable reflection and transmission dichroism, characterized by two reflection peaks within the visible spectrum, but only a single transmission ...
Yaqun Han   +5 more
wiley   +1 more source

Dispersion‐Less Dissipative Soliton Fiber Laser

open access: yesLaser &Photonics Reviews, EarlyView.
A dispersion‐less fiber laser architecture generates high‐energy, pedestal‐free picosecond pulses without resorting to conventional pulse stretching. This energy‐managed laser achieves remarkable flexibility in pulse parameters, delivering up to 0.54 μJ$\mathrm{\mu}\mathrm{J}$ pulses with minimal spectral distortion using standard telecom components ...
Mostafa I. Mohamed   +2 more
wiley   +1 more source

Time‐Stretched Interferometric LiDAR with Dispersive Wavenumber‐to‐Time Range Encoding

open access: yesLaser &Photonics Reviews, EarlyView.
We present a time‐stretched interferometric LiDAR that directly encodes distance into time‐domain interference signals. Operating at 5 MHz with only millimeter‐level coherence length, the system measures up to 12 m with centimeter precision and resolution, achieving high‐speed 3D imaging and dynamic target detection without FFT processing or long ...
Dahun Jung   +7 more
wiley   +1 more source

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