Jonathan Knight
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Explore the profile of Jonathan Knight including associated specialties, affiliations and a list of published articles.
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Articles
119
Citations
738
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Recent Articles
1.
Delivery of nanosecond laser pulses by multi-mode anti-resonant hollow core fiber at 1 µm wavelength
Zhao M, Yu F, Wu D, Zhu X, Chen S, Wang M, et al.
Opt Express
. 2024 Jun;
32(10):17229-17238.
PMID: 38858912
In this paper we explore the application of low-loss multimode anti-resonant hollow-core fiber (MM-AR-HCF) in the delivery of nanosecond laser pulses at 1 µm wavelength. MM-AR-HCF with large core offers...
2.
Marsden J, Anders P, Shaw C, Amasiatu C, Collate W, Eastwood B, et al.
EClinicalMedicine
. 2024 Feb;
68:102400.
PMID: 38299044
Background: Individual Placement and Support (IPS) is a specialist intervention to help people attain employment in the open competitive labour market. IPS has been developed in severe mental illness and...
3.
Wu D, Yu F, Wu C, Zhao M, Zheng J, Hu L, et al.
Opt Express
. 2023 Jun;
31(13):21870-21880.
PMID: 37381274
In this work, multi-mode anti-resonant hollow-core fiber (AR-HCF) with 18 fan-shaped resonators is fabricated and characterized. The ratio of core diameter over transmitted wavelengths in the lowest transmission band is...
4.
Sabbah M, Belli F, Brahms C, Yu F, Knight J, Travers J
Opt Lett
. 2023 May;
48(9):2277-2280.
PMID: 37126253
We investigate soliton self-compression and photoionization effects in an argon-filled antiresonant hollow-core photonic crystal fiber pumped with a commercial Yb:KGW laser. Before the onset of photoionization, we demonstrate self-compression of...
5.
Wang Y, Li Z, Yu F, Wang M, Han Y, Hu L, et al.
Opt Express
. 2022 Feb;
30(1):222-231.
PMID: 35201201
Surface modes (SM) are highly spatially localized modes existing at the core-cladding interface of photonic-bandgap hollow-core fiber (PBG-HCF). When coupling with SM, the air modes (AM) in the core would...
6.
Koziol P, Jaworski P, Krzempek K, Hoppe V, Dudzik G, Yu F, et al.
Sensors (Basel)
. 2021 Nov;
21(22).
PMID: 34833667
In this work, we present femtosecond laser cutting of microchannels in a nodeless antiresonant hollow-core fiber (ARHCF). Due to its ability to guide light in an air core combined with...
7.
Zhu X, Wu D, Wang Y, Yu F, Li Q, Qi Y, et al.
Opt Express
. 2021 Mar;
29(2):1492-1501.
PMID: 33726363
In this paper, we report the use of a 3-meter low-loss anti-resonant hollow-core fiber (AR-HCF) to deliver up to 300 W continuous-wave laser power at 1080 nm wavelength from a...
8.
Roberts E, Doidge J, Harron K, Hotopf M, Knight J, White M, et al.
BMJ Open
. 2020 Nov;
10(11):e043540.
PMID: 33243818
Objectives: The creation and evaluation of a national record linkage between substance misuse treatment, and inpatient hospitalisation data in England. Design: A deterministic record linkage using personal identifiers to link...
9.
Jaworski P, Koziol P, Krzempek K, Wu D, Yu F, Bojes P, et al.
Sensors (Basel)
. 2020 Jul;
20(14).
PMID: 32650459
In this work, we present for the first time a laser-based dual gas sensor utilizing a silica-based Antiresonant Hollow-Core Fiber (ARHCF) operating in the Near- and Mid-Infrared spectral region. A...
10.
Marsden J, Anders P, Clark H, Colocassis K, Eastwood B, Knight J, et al.
Trials
. 2020 Feb;
21(1):167.
PMID: 32046765
Background: Unemployment is highly prevalent in populations with alcohol and drug dependence and the employment support offered in addiction-treatment programmes is ineffective. Individual Placement and Support (IPS) is an evidence-based...