Results 161 to 170 of about 515,552 (301)

Revealing Mechanofluorochromism and Intricate Long‐lived Decay Pathways in Keto‐Coumarin‐Based Molecular Crystals

Advanced Optical Materials, EarlyView.
Donor–acceptor organic emissive materials show great promise in cutting‐edge optical applications. Herein, the photophysical properties of two keto‐coumarin organic materials are studied in detail. Both show mechanofluorochromism, but a diphenylamine donor derivative exhibits intricate decay pathways in the crystal form, including decays ranging from ...
Peter W. McDonald, Subhadeep Das, Arnab Mandal, Gilles Clavier, Clémence Allain, Abhijit Patra, Rémi Métivier   +6 more
wiley   +1 more source

Angle-Insensitive Defect-Mode Absorption in Photonic Crystals Containing Hyperbolic Metamaterials. [PDF]

Nanomaterials (Basel)
Liu M, Lu G, Wang B.
europepmc   +1 more source

Gain Narrowing in Low‐Dimensional PEA:CsPbBr3: Superfluorescence versus Amplified Spontaneous Emission

Advanced Optical Materials, EarlyView.
Superfluorescence is a cooperative emission process not scaling with sample volume. Amplified spontaneous emission is a collective process scaling with sample volume and is enhanced by waveguiding. Both manifest in a narrow emission peak. Choosing the right substrate suppresses waveguiding and demonstrates that the emission feature observed in PEA ...
Pirmin Tischler, Valerie Y. Horter, Yang Li, Holger Geßwein, Weimu Xu, Renjun Guo, Orlando Torres Perales, Julian Petry, Ulrich W. Paetzold, Nils W. Rosemann, Uli Lemmer   +10 more
wiley   +1 more source

Multi-parameter enhanced optical encryption with biphasic chiral photonic crystals. [PDF]

Light Sci Appl
Ouyang C, Chen Q, Zhang D, Xie Z, Luo D, Lu YQ, Hu W.   +6 more
europepmc   +1 more source

A Layered Two‐Dimensional Hydrogen‐Bonded Organic Framework Based on 2,5,8,11‐Tetrakis(4‐Carboxyphenyl)Perylene Diimide: Structural Nature, Optical and Photophysical Properties

Advanced Optical Materials, EarlyView.
A novel hydrogen‐bonded organic framework (HOF) based on perylene diimide (PDI) is synthesized, structurally and spectroscopically characterized. Its photophysical behavior highlights how supramolecular organizations govern the optical properties, including emission from monomers, aggregates, and excimer‐like species. Structural transformations induced
Mario de la Hoz Tomás, Taito Hashimoto, Boiko Cohen, Yuzuki Murata, Kazuki Shiga, Ryota Hanyu, Ryusei Oketani, Norimitsu Tohnai, Ichiro Hisaki, Abderrazzak Douhal   +9 more
wiley   +1 more source

Experimental validation of Davis LUT module with photonic crystals for GATE simulations. [PDF]

Phys Med Biol
He X, Kratochwil N, Ariño-Estrada G, Jain V, Roncali E.   +4 more
europepmc   +1 more source

Nanomaterial‐Incorporated Nonlinear Optical Waveguides Explored With All‐Fiber Multiphoton Polymerization

Advanced Optical Materials, EarlyView.
Nonlinear waveguides are fabricated via an all‐fiber‐based multiphoton polymerization approach incorporating upconversion nanoparticles (UCNPs), which enable both multiphoton absorption at telecommunication wavelengths and nonlinear saturable absorption operation.
Bowon Ryu, Seungyong Shin, Myungjin Kang, Young Joon Moon, Jihoon Kyhm, Hyowon Moon, Ho Seong Jang, Yong‐Won Song   +7 more
wiley   +1 more source

Tamm plasmonic-based elliptical anisotropic photonic crystals with multifunctional optical features. [PDF]

Sci Rep
Jooyandeh S, Farzad MH.
europepmc   +1 more source

Localized Ion Irradiation Enables Topography‐Free High‐Tc Superconducting Metamaterials

Advanced Optical Materials, EarlyView.
A topography‐free oxygen ion‐irradiation strategy is demonstrated for patterning superconducting YBCO terahertz metamaterials without physical material removal. The approach preserves film integrity while enabling large spectral tunability, ultrafast optical modulation, and dual‐band resonance control, providing a scalable platform for low‐loss ...
Teng Chen Ietro Pang, Yogesh Kumar Srivastava, Sobhan Subhra Mishra, Sambhu Jana, Jérôme Lesueur, Ranjan Singh   +5 more
wiley   +1 more source

Data-Driven Design Rules for Three-Dimensional Photonic Crystals. [PDF]

ACS Omega
Cersonsky RK, Nayak SK, Lee SH.
europepmc   +1 more source