Results 181 to 190 of about 200,390 (295)

Fiber Bragg Gratings with Micro‐Engineered Temperature Coefficients

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Fiber Bragg gratings (FBGs) are intrinsically responsive to temperature and strain simultaneously. In this research, low‐loss FBGs with micro‐engineered temperature coefficients are fabricated, utilizing refractive index liquid‐filled microchannels in the cladding.
Zipei Song, Mohan Wang, Frank P. Payne, Patrick S. Salter, Tongyu Liu, Steve J. Elston, Martin J. Booth, Stephen M. Morris, Julian A. J. Fells   +8 more
wiley   +1 more source

Optical frequency comb integration in radio telescopes: advancing signal generation and phase calibration. [PDF]

Light Sci Appl
Hyun M, Ahn C, Choi J, Baek J, Jeong W, Je DH, Byun DY, Wagner J, Heo MS, Jung T, Kim J.   +10 more
europepmc   +1 more source

Development of High‐Performance Multilayer Monochromators

Advanced Optical Materials, EarlyView.
Detailed insights into the optical and multilayer design of Double Multilayer Monochromators (DMM) are presented and fully characterized, including key optimization strategies and solutions to fabrication challenges. By integrating in‐house Ion Beam Figuring and a high uniformity multilayer coating process, the developed DMMs achieve high reflectivity,
Wadwan Singhapong, Arindam Majhi, Wai Jue Tan, Vishal Dhamgaye, Riley Shurvinton, Paresh Pradhan, Igor Dolbnya, Lucia Alianelli, Chris Bowen, Alexander J. G. Lunt, Hongchang Wang, Kawal Sawhney   +11 more
wiley   +1 more source

Chip-Scale Optomechanical Frequency Comb with a 1-70 GHz Span. [PDF]

Nano Lett
Gou X, Privratsky W, Sun W, Liu Y, Abiri H, Li Q.   +5 more
europepmc   +1 more source

Photonic Hybrid Integration: Strategies and Promises of Advanced Additive Manufacturing

Advanced Optical Materials, EarlyView.
Heterogeneous photonic integration combines wafer bonding, transfer printing, and advanced multi‐photon lithography to realize compact, adaptable photonic systems. This review highlights breakthroughs in hybrid materials, metrology, and 4D printing, revealing how the convergence of traditional and emerging fabrication unlocks scalable, high‐performance
Zhitian Shi, Huiyu Huang, Richard Penty, Qixiang Cheng   +3 more
wiley   +1 more source

Protocol-Agnostic Meta Key Distribution for Encrypted Wireless Communications Enabled by Space-Time-Coding Metasurface. [PDF]

Adv Sci (Weinh)
Li X, Chen L, Shen G, Zhao K, Gu Z, Ma Q, You JW, Cui TJ.   +7 more
europepmc   +1 more source

Molecular Engineering for Enhanced Second‐Order Nonlinear Response in Spontaneously‐Oriented Evaporated Organic Films

Advanced Optical Materials, EarlyView.
Intramolecular bridge‐locking frustrates detrimental anti‐parallel packing in evaporated organic films. This design enhances net polar orientation, leading to a twofold off‐resonance increase in the second‐order nonlinear susceptibility (χ(2)) without electric‐field poling.
Pierre‐Luc Thériault, Heorhii V. Humeniuk, Zhechang He, Gabriel Juteau, Alexandre Malinge, Dmytro F. Perepichka, Stéphane Kéna‐Cohen   +6 more
wiley   +1 more source

Experimental Insights into Islanding Detection in PV Inverters: Foundations for a Parallel-Operation Test Standard. [PDF]

Sensors (Basel)
Chmielowiec K, Piszczek A, Topolski Ł.
europepmc   +1 more source

Terahertz Volume Plasmon‐Polariton Modulation in All‐Dielectric Hyperbolic Metamaterials

Advanced Optical Materials, EarlyView.
THz volume plasmon‐polariton (VPP) propagation through plasmon‐based hyperbolic metamaterials, made of alternating layers of doped and undoped III‐V semiconductors. Abstract The development of plasmonics and related applications in the terahertz range faces limitations due to the intrinsic high electron density of the standard metals.
Stefano Campanaro, Luca Bursi, Stefano Curtarolo, Arrigo Calzolari   +3 more
wiley   +1 more source

Enhancing PI control in microgrids using machine-learning techniques. [PDF]

Sci Rep
Abo-Elkhair E, Abu-Elanien AEB, Mahmoud GM, ElRefaie HB.   +3 more
europepmc   +1 more source