Results 171 to 180 of about 118,225 (289)

Frequency Comb-Based Ground-Penetrating Bioradar: System Implementation and Signal Processing. [PDF]

Sensors (Basel), 2023
Shi D, Gidion G, Aftab T, Reindl LM, Rupitsch SJ.   +4 more
europepmc   +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

Coherent acoustic frequency comb via floquet engineering of optical tweezer phonon lasers. [PDF]

Sci Adv
He Y, Kuang T, Han X, Feng Z, Chen X, Xiong W, Jin S, Tan Z, Zhang Q, Luo H, Jing H, Xiao G.   +11 more
europepmc   +1 more source

Frontiers of Bright CEP‐Stable Broadband Infrared Sources

Laser &Photonics Reviews, EarlyView.
Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley   +1 more source

A mixed-field formulation for modeling dielectric ring resonators and its application in optical frequency comb generation. [PDF]

Sci Rep
Simsek E, Niang A, Islam R, Courtright L, Shandilya P, Carter GM, Menyuk CR.   +6 more
europepmc   +1 more source

Red narrow-linewidth lasing and frequency comb from gain-switched self-injection-locked Fabry-Pérot laser diode. [PDF]

Sci Rep, 2023
Shitikov AE, Galiev RR, Min'kov KN, Kondratiev NM, Cordette SJ, Lobanov VE, Bilenko IA.   +6 more
europepmc   +1 more source

Optical‐to‐Microcomb Stability Transfer for Ultrastable Timing and Microwave/Millimeter‐Wave Generation

Laser &Photonics Reviews, EarlyView.
This work demonstrates a high‐fidelity stability transfer from an optical reference to a high‐repetition‐rate microcomb using a mode‐locked laser bridge. By employing electro‐optic sampling timing detection, femtosecond‐level synchronization and 10−18‐level fractional frequency stability are achieved.
Changmin Ahn, Junyong Choi, Daewon Suk, Hansuek Lee, Jungwon Kim   +4 more
wiley   +1 more source

Frequency-comb-steered ultrawideband quasi-true-time-delay beamformer for integrated sensing and communication. [PDF]

Nat Commun
Wang M, Zhang W, Ren Z, Li S, Zheng X, Xue X.   +5 more
europepmc   +1 more source

Near-Full Current Dynamic Range THz Quantum Cascade Laser Frequency Comb. [PDF]

Micromachines (Basel), 2023
Ma Y, Li W, Li Y, Liu J, Zhuo N, Yang K, Zhang J, Zhai S, Liu S, Wang L, Liu F.   +10 more
europepmc   +1 more source

Wavelength and Full‐Polarization Encrypted Orbital Angular Momentum Meta‐Holography

Laser &Photonics Reviews, EarlyView.
By multiplexing three independent degrees of freedom of light, a single‐layer geometric‐phase metasurface encrypts 24 distinct holographic images across 3 wavelengths, 12 pairs of orthogonal polarizations, and 4 OAM channels, taking advantage of axial chromatic dispersion to reconstruct the color images at the same plane. ABSTRACT Multiplexing multiple
Yue Han, Mingna Xun, Yuqing He, Sheng Ye, Weiping Wan, Yan Li   +5 more
wiley   +1 more source