Results 101 to 110 of about 1,081,560 (171)

Calculation of losses in 2-D photonic crystal membrane waveguides using the 3-D FDTD method [PDF]

, 2004
The three-dimensional finite-difference time-domain method is used to obtain loss per unit length in a two-dimensional photonic crystal membrane waveguide by simulating three different length guides. Results are shown for propagation both above and below
Cryan, MJ, Rorison, JM, Wong, DCL, Railton, CJ, Craddock, IJ, Yu, S   +5 more
core   +1 more source

Photodoping in Wide‐Bandgap Perovskite Solar Cells With MXenes

Advanced Optical Materials, Volume 14, Issue 33, 4 September 2026.
Ultrafast tandem spectroscopy and DFT modeling reveal the separate dynamics and the imbalance of electrons and holes in wide bandgap perovskite solar cells with MXene incorporation. The enhanced photoconversion performances of the devices are traced to photodoping, with selective hole trapping and suppressed recombination of electrons.
Angelica Simbula, Antonio Agresti, Sara Pescetelli, Sofia Sechi, Nicola Sestu, Francesco Mattana, Federico Pitzalis, Riccardo Pau, David Dell'Angelo, Alessio Filippetti, Alessandro Mattoni, Anna Pazniak, Daniela Marongiu, Valeria Demontis, Francesco Quochi, Michele Saba, Andrea Mura, Giovanni Bongiovanni   +17 more
wiley   +1 more source

Label-free multiplex sensing from buffer and immunoglobulin G sensing from whole blood with photonic crystal slabs using angle-tuning of an optical interference filter. [PDF]

Biomed Opt Express, 2023
Kraft FA, Baur H, Bommer M, Latz A, Fitschen-Oestern S, Fuchs S, Gerken M.   +6 more
europepmc   +1 more source

1.5 µm Emission Properties of Erbium‐Implanted Thin‐Film Lithium Niobate

Advanced Optical Materials, Volume 14, Issue 34, 11 September 2026.
Optically active Er3+ ions are incorporated into x‐cut lithium niobate on insulator utilising a focused ion‐beam implantation method capable of sub‐100 nm precision. The implanted regions exhibit telecom‐band emission, with a reduction in photoluminescence intensity and lifetime below 50 K, consistent with pyroelectric‐field effects in the host ...
Daniel Blight, Mason Adshead, Alessandro Prencipe, Maryam Sanaee, Katia Gallo, Richard J Curry   +5 more
wiley   +1 more source

Proton‐Radiation‐Tolerant Silicon Photonic Charge Sensor for Spacecraft Applications

Advanced Sensor Research, Volume 5, Issue 9, September 2026.
A photonic charge sensor based on silicon photonic crystal waveguides is evaluated under proton irradiation to clarify radiation‐induced optical absorption during operation. The study quantitatively determines absorption increase at 20 keV and demonstrates retained spacecraft‐potential sensing after high‐fluence exposure, providing a quantitative basis
Wataru Takahama, Kosei Otsuka, Ayumi Ishihara, Rikuto Hojo, Tomofumi Mogami, Kazuhiro Toyoda, Kohtaku Suzuki, Yasushi Takahashi   +7 more
wiley   +1 more source

High temperature, experimental thermal memory based on optical resonances in photonic crystal slabs

APL Photonics, 2019
We present an experimental thermal memory with direct optical control and readout. Information is stored in the internal temperature of the device, while laser illumination is used to read, write, and erase stored bits.
Ahmed M. Morsy, Roshni Biswas, Michelle L. Povinelli   +2 more
doaj   +1 more source

Layer‐Dependent Phonon Polaritons in hBN Resolved by Photo‐Induced Force Spectroscopy

Advanced Science, Volume 13, Issue 50, 7 September 2026.
Layer‐dependent phonon polariton resonances in hexagonal boron nitride are systematically investigated using photo‐induced force microscopy. The in‐plane resonance exhibits a blueshift, while the out‐of‐plane resonance shows a redshift with increasing thickness. These results establish layer number as a key parameter for tuning polaritonic responses in
Amin Hajarian, Jiwoo Seo, SungWoo Nam
wiley   +1 more source

Synergistic Engineering of Oxygen Vacancies and Topological Surface States in Bi2Te3/TiO2‐X Heterostructures for Highly Efficient Photothermal‐Driven CO2 Photoreduction

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
Integrating the topological insulator Bi2Te3 with oxygen‐deficient TiO2‐X creates a synergistic platform for full‐spectrum CO2 reduction, achieving high‐selectivity C2+ production via enhanced photothermal catalysis and tailored charge dynamics.
Bingke Zhang, Chenchen Zhao, Jing Qiao, Changcun Li, Yang Wang, Xingshuo Liu, Dongbo Wang, Gang Liu, Zhao Qian, Rajeev Ahuja, Jinzhong Wang, Degang Zhao   +11 more
wiley   +1 more source

Reconfigurable Giant Nonreciprocity at Near‐Normal Incidence via Phase‐Change Magneto‐Optical Metagratings

Laser &Photonics Reviews, Volume 20, Issue 18, 18 September 2026.
A phase‐change magneto‐optical metagrating combines GST switching with InAs guided‐mode resonances to achieve strong nonreciprocal absorption contrast near normal incidence. A static magnetic bias creates direction‐dependent resonant splitting, while GST crystallization quenches and latches the response.
Ye Ming Qing, Yi Shen, Jun Wu, Shunsuke Murai, Zhaogang Dong, Koichi Okamoto   +5 more
wiley   +1 more source

Topotactic Nitridation Enabled Core–Shell La4Ti3(O,N)12@LaTiO2N for Efficient Photoelectrochemical Water Splitting

Small, Volume 22, Issue 49, 1 September 2026.
Topotactic nitridation of (111)‐plane layered perovskite La4Ti3O12 proceeds through a persistent 2D layered oxynitride La4Ti3(O,N)12, enabling formation of a core–shell La4Ti3(O,N)12@LaTiO2N heterostructure before full conversion into 3D perovskite LaTiO2N.
Jeongsuk Seo, Yoonji Seo, Ohmin Kwon, Minseok Ki, Woonghee Lee   +4 more
wiley   +1 more source