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@photonicsmdpi.bsky.socialOct 8, 2026, 1:08 PM

#TitleStory
πŸ“– A Directional-Entropy Framework for Polarization Disorder: Information-Theoretic Insights from von Mises–Fisher Statistics
✍ By Jihad Zallat et al.
πŸ‘‰ mdpi.com/2304-6732/13/8/744
#Photonics #Optics #Polarization #PolarimetricImaging

@photonicsmdpi.bsky.socialOct 7, 2026, 5:15 AM

#TitleStory
πŸ“– Ambiguity-Reduced Depth from Defocus via Single-Shot Polarizer-Free Dual-Focus Imaging
✍ By Wenjie Lai et al.
🏘️ From University of Electronic Science and Technology of China and Nanjing University of Posts and Telecommunications
πŸ‘‰ www.mdpi.com/2304-6732/13...
#Photonics #Optics

Principle of DFI-based ambiguity reduction. The o-ray keeps the original blur radius π‘…π‘œ, while the LC lens changes the e-ray blur radius 𝑅𝑒. The solid curve denotes π‘…π‘œ, the dashed curve denotes 𝑅𝑒, the vertical dotted lines mark two depths with the same o-ray blur radius, and the horizontal dotted line marks that shared blur-radius level. When selected properly, the pair (π‘…π‘œ,𝑅𝑒) is more discriminative than a single blur radius.
@photonicsmdpi.bsky.socialOct 2, 2026, 11:05 AM

#TitleStory
πŸ“– Evaluation of the Sensing Performance of Commercial and Homemade SERS Substrates Using Catechol as a Molecular Probe
✍ By Pauline Conigliaro et al.
πŸ‘‰ www.mdpi.com/2304-6732/13...
#Photonics #Optics #SERS #Substrates #Catechol #CalibrationCurves #Sensitivity #LOD #LOQ

@photonicsmdpi.bsky.socialOct 1, 2026, 5:39 AM

#TitleStory
πŸ“– DirectDemodNet: An End-to-End Neural Demodulator for Polarization-Diverse Underwater Visible Light Communication
✍ By Shengyao Yan et al.
🏘️ From @fudanuniversity.bsky.social
πŸ‘‰ www.mdpi.com/2304-6732/13...
#Photonics #Optics

Principle of the proposed UVLC receiver. (a) block diagram of the transmission system; (b) 32APSK constellation diagram; (c) polarization-diverse dual-aperture reception.
@mdpipharma.bsky.socialSep 30, 2026, 10:04 AM

πŸ“’ New #TitleStory! Suspension casting of #drugs in organic solvents enables microneedle patch fabrication without #dissolving the #APIβ€”addressing key challenges of aqueous casting. From Lu et al.

πŸ”— doi.org/10.3390/phar...
#Pharmaceutics #Microneedles #drugs #OrganicSolvents

@photonicsmdpi.bsky.socialSep 17, 2026, 6:15 AM

#TitleStory
πŸ“– Form Error Compensation for Freeform Mirrors Made of Aluminum Silicon Alloy in Ultra-Precision Diamond Turning
✍ By Yao Peng et al.
🏘️ From Huazhong University of Science and Technology et al.
πŸ‘‰ www.mdpi.com/2304-6732/13...
#Photonics #Optics

Manufacturing Process for AlSi40 mirrors.
@photonicsmdpi.bsky.socialSep 14, 2026, 8:16 AM

#TitleStory
πŸ“– Fiber Bragg Grating Accelerometers: A Review from Single-Axis to Multi-Dimensional Vector Sensing
✍ By Jiahe Dai, Rui Zhou, and Xueguang Qiao
πŸ‘‰ www.mdpi.com/2304-6732/13...
#Photonics #Optics #FiberSensing #FiberBraggGrating #Accelerometer #SingleAxis #MultiDimensionalVector

@photonicsmdpi.bsky.socialSep 9, 2026, 10:18 AM

#TitleStory
πŸ“– Algebraic Absorption in Non-Hermitian Photonic Lattices
✍ By Stefano Longhi
🏘️ From Politecnico di Milano and @ifisc.uib-csic.es
πŸ‘‰ www.mdpi.com/2304-6732/13...
#Photonics #Optics

(a) Schematic of an array of uniformly spaced, evanescently coupled optical waveguides. The array comprises L waveguides, with a small number of lossy waveguides located near the left edge. The coupling constant between adjacent waveguides is J, and the loss rate of the n-th waveguide is 𝛾𝑛, where 𝛾𝑛=0 for 𝑛>𝑁 and 𝑁β‰ͺ𝐿. (b) Excitation geometry corresponding to the CPA condition at the Bloch wave number π‘ž=πœ‹/2. The array is illuminated by a plane wave incident at the Bragg angle πœƒ=πœ†/(2π‘Ž), where a is the lattice period (waveguide spacing) and πœ† is the optical wavelength. As shown in the inset, this excitation corresponds to a uniform intensity profile combined with a linear phase gradient, featuring a πœ‹/2 phase shift between adjacent waveguides.
@photonicsmdpi.bsky.socialSep 8, 2026, 10:34 AM

#TitleStory
πŸ“– X-UV Radiative Processes in Structurally Active Media
✍ By Jean-Michel André et al.
🏘️ @sorbonne-universite.fr
πŸ‘‰ www.mdpi.com/2304-6732/13...
#Photonics #Optics #RadiativeProcesses #BraggDiffraction #XUVDomain #Fluorescence #RamanScattering