Results 191 to 200 of about 19,065 (260)

Programmable Three-dimensional Photonic Neural Network Chip. [PDF]

Nat Commun
Cao Z, Du HJ, Yuan XJ, Wu B, Zhang J, Fu YX, Zhang S, Zhang W, Zhou H, Jin XM, Xu XY, Tang H, Dong J, Zhang X.   +13 more
europepmc   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Emergent discrete space-time crystal of Majorana-like quasiparticles in chiral liquid crystals. [PDF]

Nat Commun
Zhao H, Zhang R, Smalyukh II.
europepmc   +1 more source

Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator

Laser &Photonics Reviews, EarlyView.
This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang, Santiago Bernal, David V. Plant, Lawrence R. Chen   +3 more
wiley   +1 more source

Broadband Parametric Amplification in AlGaAs‐on‐Insulator Nanowaveguides

Laser &Photonics Reviews, EarlyView.
Harnessing the exceptional nonlinearity of AlGaAs‐on‐insulator nanowaveguides, four‐wave‐mixing parametric amplification achieves a record net on‐chip gain of 56 dB and a gain bandwidth exceeding 415 nm at telecom wavelengths. These results establish AlGaAsOI as a powerful platform for compact, high‐performance integrated nonlinear optical ...
Yanjing Zhao, Chanju Kim, Yi Zheng, Chaochao Ye, Yueguang Zhou, Kresten Yvind, Minhao Pu   +6 more
wiley   +1 more source

Chiral orbital lasing in a twisted bilayer metasurface. [PDF]

Nat Commun
Wang M, Lv N, Zhang Z, Chen Y, Si J, Chen J, Tang C, Yin X, Liu Z, Xin D, Yi Z, Zheng W, Kivshar Y, Peng C.   +13 more
europepmc   +1 more source

In Situ Acoustic Monitoring of Focused Femtosecond Pulse Duration in Air

Laser &Photonics Reviews, EarlyView.
Air‐breakdown acoustics at the laser focus is used to determine femtosecond pulse duration with a simple USB microphone. By chirp‐tuning and compressing 1030 nm pulses from 241 to 50 fs, the acoustic amplitude scales inversely proportional to the square root of the pulse duration, enabling in situ readout over 50 fs–5 ps—crucial for precise pulse ...
Indrė Meškėlaitė, Hsin‐Hui Huang, Haoran Mu, Nguyen Hoai An Le, Tomas Katkus, Edvinas Aleksandravičius, Gabrielius Kontenis, Domas Paipulas, Saulius Juodkazis, Darius Gailevičius   +9 more
wiley   +1 more source

Multiplexed back focal plane imaging with on-chip integrated microlens array. [PDF]

Nat Commun
Furman M, Muszyński M, Oliwa P, Zinkiewicz Ł, Bogucki A, Szczytko J, Wasylczyk P, Pacuski W, Król M, Piętka B.   +9 more
europepmc   +1 more source

Wireless Cloud‐Based Intraoral Scanners in Dental Education: Security, Interoperability, and Pedagogical Implications

Journal of Dental Education, EarlyView.
Leandro Passos, Nathan Santiago
wiley   +1 more source

Synergistic Multi‐Strategy Engineering of Temperature‐Responsive Self‐Trapped Excitons in Tin‐Based Double Perovskite Nanocrystals Enables High‐Sensitivity Fluorescence Thermometry

Laser &Photonics Reviews, EarlyView.
Bi3+‐doped Cs2SnCl6 nanocrystals are engineered to deliver highly temperature‐responsive self‐trapped exciton emission, achieving record thermal sensitivity at elevated temperatures. A temperature‐induced dual‐STE excited state landscape enables reversible thermochromism, while a dual‐parameter calibration combining fluorescence lifetime and CIE‐y ...
Sujun Ji, Shikai Chen, Boyu Zhang, Dandan Wang, Yuyao Wei, Qiao Li, Weiqiang Wang, Yao Guo, Hua Li, Jibin Zhang, Huān Bì, Junpeng Xue, Shuzi Hayase, Yongge Yang, Yusheng Li, Feng Liu, Qing Shen   +16 more
wiley   +1 more source