Results 291 to 300 of about 286,805 (345)

Mathematical model for highly sensitive photonic crystal fiber sensor based on hyperbolic black holes. [PDF]

Sci Rep
Mousavi Monazah SM, Salehi MR, Emami F.
europepmc   +1 more source

Strong enhancement of spontaneous emission in amorphous-silicon-nitride photonic crystal based coupled-microcavity structures

, 2001
Mehmet Bayındır, Selim Tanriseven, Atilla Aydınlı, Ekmel Özbay   +3 more
openalex   +2 more sources

Selective Directional Enhancement in Gold/Perovskite Quantum Dot Metasurfaces

Advanced Optical Materials, EarlyView.
A thin gold layer can selectively enhance the directional radiation of a perovskite quantum dot (QD)1D metasurface by incorporating hybrid plasmonic excitation and redistributing diffraction orders from substrate to cover. The use of template‐assisted self‐assembly techniques enables breakthrough tunability in radiative properties over large areas ...
Mohammad Adnan, Swagato Sarkar, Olha Aftenieva, Julius Brunner, Andreas Fery, Yana Vaynzof, Tobias A.F. König   +6 more
wiley   +1 more source

Preparation and Adsorption Photocatalytic Properties of PVA/TiO₂ Colloidal Photonic Crystal Films. [PDF]

Gels
Qian Z, Wang M, Li J, Chu Z, Tang W, Chen C.   +5 more
europepmc   +1 more source

Large Bidirectional Refractive Index Change in Silicon‐rich Nitride via Visible Light Trimming

Advanced Optical Materials, EarlyView.
Continuous‐wave visible light trimming of PECVD silicon‐rich nitride micro‐ring resonators enables precise, large bidirectional refractive index tuning. Resonance shifts as fine as 10 pm are achieved with a cost‐effective setup, demonstrating large red shifts of 49.1 nm and blue shifts of 10.6 nm.
Dmitrii Belogolovskii, Md Masudur Rahman, Karl Johnson, Vladimir Fedorov, Andrew Grieco, Nikola Alic, Abdoulaye Ndao, Paul K. L. Yu, Yeshaiahu Fainman   +8 more
wiley   +1 more source

Carbon Dots-Modified Hollow Mesoporous Photonic Crystal Materials for Sensitivity- and Selectivity-Enhanced Sensing of Chloroform Vapor. [PDF]

Nanomicro Lett
Liu J, Liu J, Li Z, Zhao L, Wang T, Yan X, Liu F, Li X, Li Q, Sun P, Lu G, Zhao D.   +11 more
europepmc   +1 more source

Colossal Terahertz Emission with Ultrafast Tunability Based on Van der Waals Ferroelectric NbOI2

Advanced Optical Materials, EarlyView.
The widespread THz applications are hindered by the scarcity of efficient ultrafast THz sources with on‐demand fast modulation and easy on‐chip integration capability. Here the discovery of colossal THz emission is reported from a van der Waals (vdW) ferroelectric semiconductor NbOI2 and demonstrates the ultrafast coherent control of the THz emission ...
Sujan Subedi, Wenhao Liu, Wuzhang Fang, Carter Fox, Zixin Zhai, Fan Fei, Yuan Ping, Bing Lv, Jun Xiao   +8 more
wiley   +1 more source

Dirac exciton-polariton condensates in photonic crystal gratings. [PDF]

Nanophotonics
Sigurðsson H, Nguyen HC, Nguyen HS.
europepmc   +1 more source

Advancing Solar Modulation Ability of Near Infrared Thermochromic Cholesteric Liquid Crystal Smart Window Films Using a Waveplate

Advanced Optical Materials, EarlyView.
This work presents the use of a waveplate in thermochromic materials for smart windows. The waveplate enables the optical material to transition from a narrow band reflection to broad band ambidextrous reflection upon heating, resulting in a solar transmission modulation of 5.2% which is four times greater than typical thermochromic cholesteric liquid ...
Henk Sentjens, Augustinus J. J. Kragt, Julia S. van der Burgt, Albert P. H. J. Schenning   +3 more
wiley   +1 more source

A promising high-sensitive 1D photonic crystal magnetic field sensor based on the coupling of Fano\Tamm resonance in far IR region. [PDF]

Sci Rep
Elsayed HA, Medhat M, Hajjiah A, Alfassam HE, Abukhadra MR, Mehaney A.   +5 more
europepmc   +1 more source