Results 121 to 130 of about 65,642 (268)

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Theoretical Optical Output Power Improvement of InGaN-Based Violet Laser Diode Using AlGaN/GaN Composite Last Quantum Barrier. [PDF]

Nanomaterials (Basel), 2022
Zhang Z, Yang J, Zhao D, Liang F, Chen P, Liu Z.   +5 more
europepmc   +1 more source

Guest‐Induced Activation of Multicolor Photoluminescence in Naphthalene Bisimide Liquid Crystals

Advanced Materials, EarlyView.
Supramolecular host–guest design in naphthalene bisimide liquid crystals activates charge‐transfer emission and enables continuous tuning of color (511–685 nm) and lifetime, spanning prompt fluorescence, TADF, and RTP. Electron‐rich guests and Pt(II) complexes modulate emissive states, while co‐assembled NBI complexes create an energy‐transfer cascade ...
Johannes Nowarra, Swadhin Garain, Matthias Stolte, Frank Würthner   +3 more
wiley   +1 more source

Controlling the wavelength of a high power diode laser using thermoelectric cooler

Iraqi Journal of Physics, 2012
The present work includes a design and characteristics study of a controlling the wavelength of high power diode laser by thermoelectric cooler [TEC] .
Fareed F. Rasheed
doaj  

Experimental Assessment of the Transmission Performance of Step Index Polymer Optical Fibers Using a Green Laser Diode. [PDF]

Polymers (Basel), 2021
Losada MÁ, Mazo M, López A, Muzás C, Mateo J.   +4 more
europepmc   +1 more source

Emergent Freestanding Complex Oxide Membranes for Multifunctional Applications

Advanced Materials, EarlyView.
This review surveys freestanding oxide membranes and covers fabrication and three pathways for studies and devices: strain‐free and strained membranes, and van der Waals‐integrated heterostructures. We show how coupled oxide responses map onto these routes and cross‐couple to expand behaviors.
Baowen Li, Yanran Liu, Jinjin Liu, Josephine Si Yu See, Kaijian Xing, Dong‐Chen Qi, Xiao Renshaw Wang   +6 more
wiley   +1 more source

Combination effect of laser diode for photodynamic therapy with doxycycline on a wistar rat model of periodontitis. [PDF]

BMC Oral Health, 2021
Astuti SD, Utomo IB, Setiawatie EM, Khasanah M, Purnobasuki H, Arifianto D, Alamsyah KA.   +6 more
europepmc   +1 more source

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

Advanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief, Swagato Sarkar, Anik Kumar Ghosh, Osvalds Verners, Kamal Kumar Meena, Su‐Hyeong Lee, Soosang Chae, Tobias A. F. König, Beate Krause, Andreas Fery, Mehmet Sait Özer, Anindya Nag, Amit Das   +12 more
wiley   +1 more source

Pulsed laser diode excitation for transcranial photoacoustics. [PDF]

Biomed Opt Express
Cherkashin MN, Laufer J, Kirchner T.
europepmc   +1 more source

Development of a Long Period Fiber Grating Interrogation System Using A Multimode Laser Diode. [PDF]

Sensors (Basel), 2021
Silva LH, Santos P, Coelho LCC, Jorge P, Baptista JM.   +4 more
europepmc   +1 more source