Results 241 to 250 of about 534,558 (401)

Unidirectional Focusing of Light Using Structured Diffractive Surfaces

Advanced Optical Materials, EarlyView.
This study presents a reciprocal diffractive unidirectional focusing design based on linear and isotropic layers. A set of cascaded diffractive layers is designed using deep learning to achieve efficient forward light focusing while suppressing backward propagation across various illumination angles.
Yuhang Li, Tianyi Gan, Jingxi Li, Mona Jarrahi, Aydogan Ozcan   +4 more
wiley   +1 more source

A Method to Address the Impact of Incident Conditions on the Spectral Reconstruction of the Talbot Wavemeter. [PDF]

Sensors (Basel)
Wang Y, Huang Y, Yang X, Li Z, Li Y.
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

Waveguide grating couplers with bandwidth beyond 200 nm. [PDF]

Nanophotonics
Zhou X, Xue Y, Feng H, He J, Sun X, Wang C, Lau KM, Tsang HK.   +7 more
europepmc   +1 more source

Grateful thanks [PDF]

British Dental Journal, 2019
openaire   +2 more sources

Thermal Dynamics Induced by Surface Acoustic Waves in Lanthanide‐Doped Core@Multishell Nanoparticles

Advanced Optical Materials, EarlyView.
Accurate local temperature readout in integrated nanoscaled devices driven by high‐frequency surface acoustic waves (SAWs) has a strong technological interest. This image illustrates how lanthanide‐doped core@multishell nanoparticles can be employed as local temperature probes in SAW applications.
Pablo B. Pinto, Pedro W. Matrone, Flávia S. Ferreira, Paulo V. Santos, Fernando A. Sigoli, Odilon D. D. Couto Jr.   +5 more
wiley   +1 more source

3D-architected gratings for polarization-sensitive, nature-inspired structural color. [PDF]

Nanophotonics
Ibarra Miranda MH, Osterberg LW, Shah DH, Regulagadda K, Poulikakos LV.   +4 more
europepmc   +1 more source

Locking in Color: Stable RGB Perovskite Nanocrystal Films via UV Cross‐Linking

Advanced Optical Materials, EarlyView.
Combining block copolymer stabilized lead halide nanocrystals with a UV light‐based cross‐linking procedure yields ultra‐stable nanocrystal thin films, which are resistant to dissolution by organic solvents and impervious to interlayer ion exchange. This allows for the fabrication of stacked layer RGB all‐perovskite white light‐emitting phosphors with ...
Patrick Ganswindt, Isabella Tepfenhart, Andreas Singldinger, Anna Abfalterer, Laura Spies, Ekaterina Kostyurina, Mareike Stadler, Bert Nickel, Alexander S. Urban   +8 more
wiley   +1 more source

A MEMS grating modulator with a tunable sinusoidal grating for large-scale extendable apertures. [PDF]

Microsyst Nanoeng
Hui D, Li D, Wang B, Li Y, Ding J, Zhang L, Qiao D.   +6 more
europepmc   +1 more source

Channeled Grating Spectra, Obtained in Successive Diffractions

, 1916
Carl Barus
openalex   +1 more source