Results 61 to 70 of about 11,003 (245)

Mid-infrared supercontinuum generation by tellurite oval-core optical fiber [PDF]

EPJ Web of Conferences
For generating polarization-maintained mid-infrared supercontinuum light, we have simulated, and fabricated tellurite oval-core optical fiber. Polarization-maintained supercontinuum light from 1660 to 2570 nm has been generated from the fabricated ...
Takahata Keita, Nakatani Asuka, de Clermont-Gallerande Jonathan, Suzuki Takenobu, Ohishi Yasutake   +4 more
doaj   +1 more source

Mid-Infrared Highly Efficient, Broadband, and Flattened Dispersive Wave Generation via Dual-Coupled Thin-Film Lithium-Niobate-on-Insulator Waveguide

Applied Sciences, 2022
We designed a structure of dual-coupled ridge waveguide in thin-film lithium-niobate-on-insulator (LNOI) and numerically studied the highly efficient, broadband, and flattened dispersive wave-enhanced supercontinuum generation in the mid-infrared region.
Jing Jia, Zhe Kang, Qiangsheng Huang, Sailing He   +3 more
doaj   +1 more source

Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths

Advanced Science, EarlyView.
Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears, Kerrianne Harrington, Jonathan C. Knight, William J. Wadsworth, James M. Stone, Tim A. Birks   +5 more
wiley   +1 more source

1.06 µm picosecond pulsed, normal dispersion pumping for generating efficient broadband infrared supercontinuum in meter-length single-mode tellurite holey fiber with high Raman gain coefficient

, 2011
We investigate efficient broadband infrared supercontinuum generation in meter-length single-mode small-core tellurite holey fiber. The fiber is pumped by 1.06µm picosecond pulses in the normal dispersion region.
Shi, Jindan, Feng, Xian, Teh, Peh Siong, Chen, Kangkang, Horak, Peter, Ibsen, Morten, Richardson, David J., Alam, Shaif-ul, Loh, Wei H.   +8 more
core   +1 more source

Supercontinuum Shaping via Hollow Core Anti-Resonant Fiber

Photonics, 2023
This study proposes a novel supercontinuum (SC) shaping method using an all-fiber structure with little influence on the time domain and frequency domain of the SC spectrum. An SC is a type of laser source with a broad spectrum.
Mengying Ge, Liang Chen, Meisong Liao, Fei Yu, Dakun Wu, Tianxing Wang, Weiqing Gao, Lili Hu   +7 more
doaj   +1 more source

Suppressed Auger Heating of Hot Carriers in Cu‐Doped Colloidal Quantum Wells

Advanced Science, EarlyView.
ABSTRACT Auger heating represents a major bottleneck for hot carrier (HC) relaxation in colloidal quantum wells (CQWs), delaying carrier accumulation in band‐edge states and diminishing performance in light‐emitting applications. To address this issue, we introduce copper doping in CdSe CQWs to create midgap states, which efficiently suppresses Auger ...
Junhong Yu, Ke Wang, Yadong Han, Zhenzhong Lian, Songyan Hou, Hilmi Volkan Demir, Manoj Sharma   +6 more
wiley   +1 more source

Dispersion-Engineered Step-Index Tellurite Fibers for Mid-Infrared Coherent Supercontinuum Generation from 1.5 to 4.5 μm with Sub-Nanojoule Femtosecond Pump Pulses

Applied Sciences, 2018
Mid-infrared supercontinuum generation from 1.5 to 4.5 µm with sub-nanojoule femtosecond pump pulses is demonstrated by using a short segment of dispersion-engineered step-index tellurite fiber with very low OH content.
Paul Froidevaux, Arnaud Lemière, Bertrand Kibler, Frédéric Désévédavy, Pierre Mathey, Grégory Gadret, Jean-Charles Jules, Kenshiro Nagasaka, Takenobu Suzuki, Yasutake Ohishi, Frédéric Smektala   +10 more
doaj   +1 more source

Dipole‐Manipulated Built‐In Electric Field Enables Ultrafast Charge Separation in Perylene Diimide Polymers for Photoelectrochemical Water Splitting

Advanced Science, EarlyView.
Molecular dipole engineering in dendritic perylene diimide polymers through nitrogen‐rich heterocyclic linkers amplifies the built‐in electric field, enabling sub‐picosecond charge separation and efficient multi‐electron accumulation. This structure–dynamics–performance relationship establishes a versatile design strategy for high‐performance organic ...
Ying‐Xin Qiao, Zicong Situ, Yi‐Jing Chen, Shuo‐Xiang Liu, Jing‐Lan Zhang, Xingqing Li, Luo‐Han Xie, Si‐Hang Xie, Qing‐Xiao Tong, Andong Xia, Zhuoran Kuang, Jing‐Xin Jian   +11 more
wiley   +1 more source

Supercontinuum generation in mid-IR using chalcogenide and germanate nonlinear fiber [PDF]

, 2013
We demonstrate mid-infrared (mid-IR) supercontinuum generation with bandwidth from 2 to 2.8 μm at 20 dB below the peak in nonlinear step-index chalcogenide fiber using femtosecond mid-IR pulses directly from the oscillator.
Dvoyrin, Vladislav, Klimentov, Dmitry, Irina T. Sorokina, Sorokin, Evgeni, Klimentov, Dmitriy, Nikolai Tolstik, Dmitriy Klimentov, Kalashnikov, Vladimir, Evgeni Sorokin, Sorokina, Irina T., Vladimir Kalashnikov, Tolstik, Nikolai, Sorokina, Irina T, Vladislav Dvoyrin   +13 more
core   +1 more source

Arsenic Sulfide Suspended-core Fiber Simulation with Three Parabolic Air Holes for Supercontinuum Generation

Photonics, 2020
Highly nonlinear suspended-core fibers (SCFs) with tunable dispersion have attracted much attention in the fields of Raman amplification, optical frequency combs, broadband and flat supercontinuum generation (SCG).
Tao Peng, Xunsi Wang, Tiefeng Xu
doaj   +1 more source