Results 71 to 80 of about 61,791 (241)

Mapping of Physiological Signals From Wireless Battery‐Free Implants With Plane‐Wave Ultrasound Imaging

Advanced Materials Technologies, EarlyView.
Combined approach of electromagnetic (Power) and ultrasound (data harvesting) waves is proposed to address the miniaturized ultrasonic implants. Electromagnetic waves trigger the piezoelectric element to generate the acoustic pulse which is modulated by the variations in the sensor's impedance.
Anam Bhatti, Hugo Guillot, Ouafae Firdaouissi, Mohammed Irar, Lionel Rousseau, Clément Hébert, Maxime Lafond   +6 more
wiley   +1 more source

Schottky Barrier Engineering in n‐Type Organic Source‐Gated Transistors Enabling High Conductance

Advanced Materials Technologies, EarlyView.
This study introduces a modified source electrode architecture for n‐type organic source‐gated transistors (OSGTs). By integrating Schottky and Ohmic contact regions, the design achieves a thinner depletion envelope, enhancing mobility nearly tenfold and reducing threshold voltage.
Yonghee Kim, Jae Won Lee, Wonbeen Jeong, Eun Kwang Lee, Jiyoul Lee   +4 more
wiley   +1 more source

Metasurface-driven polarization-division multiplexing of PCSEL for optical communications. [PDF]

Discov Nano, 2023
Miao WC, Chang CH, Hsiao FH, Chang YH, Huang JH, Su HT, Lin CY, Lin CL, Chow CW, Hong YH, Huang YW, Kuo HC.   +11 more
europepmc   +1 more source

Reverse Intersystem Crossing and Exciton Harvesting: A Pathway to Low Threshold in Multi‐Resonant TADF Electrically Pumped Organic Semiconductor Lasers

Advanced Optical Materials, EarlyView.
Electrically pumped organic lasing thresholds are lowered by mitigating triplet accumulation through a tailored host‐guest system. Integrating the multi‐resonant TADF emitter DABNA‐2 into a triplet‐scavenging BSBCz host suppresses singlet‐triplet annihilation.
Adam Bickerdike, Mahdiyar Nouri‐Rezaie, Takuji Hatakeyama, Chris Groves, Chihaya Adachi, Mujeeb U. Chaudhry, Roderick C. I. MacKenzie   +6 more
wiley   +1 more source

Broadband Photonic RF Channelization Based on Coherent Optical Frequency Combs and I/Q Demodulators

IEEE Photonics Journal, 2012
In this paper, a novel photonic-assisted broadband and high-resolution radio-frequency (RF) channelization scheme based on dual coherent optical frequency combs (OFCs), regular optical de-muxes, and I/Q demodulators is analyzed and experimentally ...
Xiaojun Xie, Yitang Dai, Kun Xu, Jian Niu, Ruixin Wang, Li Yan, Jintong Lin   +6 more
doaj   +1 more source

Encryption in phase space for classical coherent optical communications. [PDF]

Sci Rep, 2023
Chan A, Khalil M, Shahriar KA, Plant DV, Chen LR, Kuang R.   +5 more
europepmc   +1 more source

Solution‐Processed Spin‐Polarized Light‐Emitting Diodes of Colloidal Quantum Wells and Magnetic Nanoparticles

Advanced Optical Materials, EarlyView.
All‐solution‐processed spin‐LEDs based on colloidal Fe3O4 nanoparticles and CdSe/CdZnS core/shell CQWs that allows for polarization modulation of electroluminescence are fabricated. With these devices, electrical injection of spin‐polarized carriers from the Fe3O4 nanoparticle layer into the CdSe/CdZnS CQWs is demonstrated, realizing circularly ...
Savas Delikanli, Arinjoy Bhattacharya, Betul Canimkurbey, Chang Huai, Amani Almutairi, Arman Najafi, Hilal Korkut, Farzan Shabani, Furkan Isik, James Pientka, Ibrahim Sarpkaya, Hao Zeng, Richard D. Schaller, Athos Petrou, Hilmi Volkan Demir   +14 more
wiley   +1 more source

Broadband and High Extinction Ratio Mode Converter Using the Tapered Hybrid Plasmonic Waveguide

IEEE Photonics Journal, 2019
We propose and numerically analyze a broadband and high extinction ratio mode converter to achieve the mode conversion between the fundamental transverse electric mode (TE0) and the first-order transverse magnetic mode (TM1).
Zhuo Cheng, Jun Wang, Zeyuan Yang, Haiying Yin, Wei Wang, Yongqing Huang, Xiaomin Ren   +6 more
doaj   +1 more source

Responsive Visible‐Wavelength Metasurfaces from Porous Silicon Based on Fano Guided‐Mode Resonance

Advanced Optical Materials, EarlyView.
The article introduces mesoporous silicon metasurfaces (pSi‐MS) supporting Fano guided‐mode resonances in the visible regime. By combining top‐down lithographic patterning of 2D gratings with bottom‐up electrochemical porosification, the approach realizes a new class of responsive metasurfaces, enabling highly sensitive and portable platforms for small
Tomoshree Dash, Saddam Gafsi, Estevao Marques Dos Santos, Ivan Kravchenko, Judson D. Ryckman   +4 more
wiley   +1 more source

Efficient Polarization Beam Splitter Based on All-Dielectric Metasurface in Visible Region

Nanoscale Research Letters, 2019
In this paper, we present an all-dielectric gradient metasurface, composed of periodic arrangement of differently sized cross-shaped silicon nanoblocks resting on the fused silica substrate, to realize the function of polarization split in visible region.
Jing Li, Chang Liu, Tiesheng Wu, Yumin Liu, Yu Wang, Zhongyuan Yu, Han Ye, Li Yu   +7 more
doaj   +1 more source