Results 31 to 40 of about 2,748 (191)

Multi-octave supercontinuum generation from mid-infrared filamentation in a bulk crystal

EPJ Web of Conferences, 2013
We present supercontinuum generation pumped by femtosecond mid-infrared pulses in a bulk homogeneous material. The spectrum extends from 450 nm into the midinfrared, and carries high spectral energy density (3 pJ/nm–10 nJ/nm). The supercontinuum has high
Faccio D., Hemmer M., Baudisch M., Thai A., Silva F., Austin Dane R., Couairon A., Biegert J.   +7 more
doaj   +1 more source

Supercontinuum generation in high-index doped silica photonic integrated circuits under diverse pumping settings [PDF]

EPJ Web of Conferences
Recent years have witnessed remarkable progress in enhancing the supercontinuum (SC) generation in highly nonlinear photonic integrated waveguides. In this study, we conduct a comprehensive investigation into supercontinuum (SC) generation in high-index ...
Khallouf C., Hoang V. T., Fanjoux G., Little B., Chu S. T., Moss D. J., Morandotti R., Dudley J. M., Wetzel B., Sylvestre T.   +9 more
doaj   +1 more source

Two-Octave Supercontinuum Generation of High-Order OAM Modes in Air-Core As₂S₃ Ring Fiber

IEEE Access, 2020
In this work, we design and simulate an air-core As2S3 ring fiber for high-order orbital angular momentum (OAM) supercontinuum generation. We show that the chromatic dispersion of the ring fiber can be substantially tailored by proper optimization of the
Yingning Wang, Changjing Bao, Jicong Jiang, Yuxi Fang, Wenpu Geng, Zhi Wang, Weigang Zhang, Hao Huang, Yongxiong Ren, Zhongqi Pan, Yang Yue   +10 more
doaj   +1 more source

Active Supercontinuum Injection for Optical Parametric Chirped Pulse Amplification

IEEE Photonics Journal, 2017
The anticipant supercontinuum is a prerequisite for the pump seed generation in an optical parametric chirped pulse amplification (OPCPA) system. To achieve the anticipant supercontinuum, we develop an active method operated in a two-level control scheme
Jie Mu, Kainan Zhou, Xiao Wang, Yi Guo, Yanlei Zuo, Xiaodong Wang, Na Xie, Song Zhou, Qihua Zhu, Jingqin Su, Lei Zhao, Xiaoming Zeng   +11 more
doaj   +1 more source

A New Strategy for Creating Quantum Light Emitters Via Post‐Growth Hydrogen‐Ion Irradiation of III‐V Nanowires

Advanced Functional Materials, EarlyView.
A post‐growth method is demonstrated to realize energy‐tunable quantum emitters in GaAs/GaAsN/GaAs core–multishell nanowires on a Si substrate. By combining the N‐induced bandgap reduction with H‐ion irradiation, the GaAsN potential landscape is engineered, enabling isolated, narrow emission lines that function as single‐photon sources with g(2)(0) ∼ 0.
Akant Sagar Sharma, Paolo De Vincenzi, Nadine Denis, Francesca Santangeli, Riccardo Pallucchi, Harikrishnan Gopalakrishnan, Elena Blundo, Antonio Polimeni, Marco Felici, Fumitaro Ishikawa, Marta De Luca   +10 more
wiley   +1 more source

Stimulated Supercontinuum Generation

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009
We demonstrate active control over optical rogue waves with a weak optical seed. With this effect, we stimulate supercontinuum generation, resulting in greatly enhanced stability and coherence. The phenomenon also facilitates all-optical three-terminal devices.
Solli, Daniel R., Ropers, Claus, Jalali, Bahram   +2 more
openaire   +2 more sources

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh, Bharti Garg, Maximilian Black, Masoud Taleb, Nahid Talebi   +4 more
wiley   +1 more source

Ultraviolet-Extended Supercontinuum Generation in Zero-Dispersion Wavelength Decreasing Photonic Crystal Fibers

IEEE Photonics Journal, 2020
Supercontinuum covering the ultraviolet-blue region is highly useful for fluorescence microscopy. Four zero-dispersion wavelength decreasing photonic crystal fibers with different fiber cross structures and taper profiles are fabricated to extend the ...
Wanjun Bi, Xia Li, Meisong Liao, Tianxing Wang, Peiwen Kuan, Liang Chen, Lili Hu, Weiqing Gao   +7 more
doaj   +1 more source

Ultra-wideband and coherent supercontinuum generation (near and mid-infrared) in dispersion flattened ZnGeP2 photonic crystal fiber

Alexandria Engineering Journal, 2023
Transmission window is a major concern in selecting the background material of photonic crystal fiber for supercontinuum generation. In this work, Zinc-Germanium Diphosphide (ZnGeP2) based single material photonic crystal fiber has been proposed with ...
Shah Md. Salimullah, Mohammad Faisal
doaj   +1 more source

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

Advanced Functional Materials, EarlyView.
This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha, Chaohao Chen, Zhe Li, Tuomas Haggren, Dawei Liu, Yang Yu, Baolei Liu, Sanjay Krishna, Hark H. Tan, Chennupati Jagadish, Lan Fu   +10 more
wiley   +1 more source