Results 161 to 170 of about 78,434 (315)

Optical trapping and control of nanoparticles inside evacuated hollow core photonic crystal fibers [PDF]

, 2016
David Grass, Julian Fesel, Sebastian G. Hofer, Nikolai Kiesel, Markus Aspelmeyer   +4 more
openalex   +1 more source

Thickness‐Dependent Infrared Emissivity of Ultrathin Freestanding MoSiN Nanocomposite Membranes

Advanced Optical Materials, EarlyView.
ABSTRACT Metals and dielectrics show opposite trends in thickness‐dependent infrared emissivity: metallic films exhibit a rise in emissivity below a critical thickness, while dielectric films show a corresponding decline. For applications demanding both high emissivity and mechanical strength in membranes with nanoscale thickness, combining these ...
Reethu Sebastian, Amrid Amnache, Nadi Braidy, Luc G. Fréchette   +3 more
wiley   +1 more source

High-Order Nonlinear Photonic Crystal with Ordered Structures for Giant Enhancement of Frequency Tripling. [PDF]

Adv Sci (Weinh)
Guo X, Han Q, Liang F, Zhang B, Lu D, Yu H, Zhang H.   +6 more
europepmc   +1 more source

OMNI-DIRECTIONAL, SPECTRALLY SELECTIVE, WAFER-SCALE FABRICATED METALLIC-DIELECTRIC 2-D PHOTONIC CRYSTALS FOR HIGH TEMPERATURE ENERGY CONVERSION

, 2014
Jeffrey B. Chou, Andrej Lenert, Katherine Smyth, E.N. Wang, S.-G. Kim   +4 more
openalex   +1 more source

One-dimensional time-Floquet photonic crystal

, 2021
Neng Wang, Guo Ping Wang
openalex   +1 more source

Exciton Radiative Lifetimes in Hexagonal Diamond Ge and SixGe1–x Alloys

Advanced Optical Materials, EarlyView.
Strong room‐temperature photoluminescence reported in hexagonal Ge conflicts with theory predicting a nearly dark band edge. First‐principles calculations of excitonic radiative lifetimes fill a key gap in this debate, showing that pristine hexagonal Ge remains intrinsically weakly emissive, while Si alloying only modestly shortens the lifetime and ...
Michele Re Fiorentin, Michele Amato, Maurizia Palummo   +2 more
wiley   +1 more source

Generalized non-Hermitian Hamiltonian for guided resonances in photonic crystal slabs. [PDF]

Nanophotonics
Nguyen VA, Nguyen HS, Yuan Z, Nguyen DX, Dang C, Ha ST, Letartre X, Le-Van Q, Nguyen HS.   +8 more
europepmc   +1 more source

Thermo‐Derived Cholesteric Liquid Crystal Elastomer Pattern with Composite Structural Colors

Advanced Optical Materials, EarlyView.
A thermochromic cholesteric liquid crystal (CLC) oligomer was synthesized for the preparation of CLC elastomer (CLCE) films with dual reflection bands. Subsequently, a CLCE pattern with composite structural colors was prepared, which was suitably applied for decoration and anti‐counterfeiting.
Li Zhong, Yi Li, Wei Liu, Yonggang Yang
wiley   +1 more source

Realization of a Dirac-vortex topological photonic crystal fiber. [PDF]

Nat Commun
Niu Q, Yan B, Shen L, Lin H, Zhang X, Wan Z, Xu M, Zhang H, Luo J, Zhang L, Shum PP, Gao Z, Wang J.   +12 more
europepmc   +1 more source

Exploring the Synergy of Combining BINAP and tCzBN Motifs Within Multi‐Resonant TADF Emitters to Enhance OLED Performance

Advanced Optical Materials, EarlyView.
This work presents two MR‐TADF emitters, BINAP‐BN1 and BINAP‐BN2, based on a BINAP core and differing numbers of tCzBN units. Both emitters show similar solution photophysics, but distinct behavior in doped films, where BINAP‐BN1 exhibits higher photoluminescence quantum yield and suppressed aggregation‐induced emission broadening compared to BINAP‐BN2.
John Marques dos Santos, Debasish Barman, Rangani Wathsala Weerasinghe, Tomas Matulaitis, David B. Cordes, Aidan P. McKay, Youichi Tsuchiya, Chihaya Adachi, Eli Zysman‐Colman   +8 more
wiley   +1 more source