Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Christian Agger"'
Publikováno v:
Day 1 Sun, February 19, 2023.
Shale reservoirs are characterized by having low permeability which prevents the fluid components from moving freely in the reservoir. Shale producers therefore often face challenges getting representative fluid samples. This paper shows the composit
Autor:
Christian Agger, Henrik Sorensen
Publikováno v:
SPE Journal. :1-12
Summary Gas injection is a frequently used technique for enhanced oil recovery. If the gas injection is carried out at a pressure at or above the minimum miscibility pressure (MMP), it is possible to achieve a recovery that approaches 100%. However,
Autor:
Bruce Napier, Zhuoqi Tang, Mark Farries, David Furniss, Ole Bang, Irnis Kubat, Slawomir Sujecki, Trevor M. Benson, Peter Fuhrberg, Karsten Scholle, Jon Ward, Uffe Møller, Samir Lamrini, Christian Agger, Angela B. Seddon, Peter M. Moselund
Publikováno v:
Kubat, I, Agger, C, Møller, U V, Seddon, A B, Tang, Z, Sujecki, S, Benson, T M, Furniss, D, Lamrini, S, Scholle, K, Fuhrberg, P, Napier, B, Farries, M, Ward, J, Moselund, P M & Bang, O 2014, ' Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm ', Optics Express, vol. 22, no. 16, pp. 19169-19182 . https://doi.org/10.1364/OE.22.019169
We present numerical modeling of mid-infrared (MIR) supercontinuum generation (SCG) in dispersion-optimized chalcogenide (CHALC) step-index fibres (SIFs) with exceptionally high numerical aperture (NA) around one, pumped with mode-locked praseodymium
Autor:
Samir Lamrini, Christian Rosenberg Petersen, Jon Ward, Uffe Møller, Ole Bang, Trevor M. Benson, Bruce Napier, Angela B. Seddon, Peter M. Moselund, Christian Agger, Irnis Kubat, Slawomir Sujecki, Peter Fuhrberg, Mark Farries, Karsten Scholle
Publikováno v:
Agger, C, Kubat, I, Møller, U V, Bang, O, Moselund, P M, Petersen, C, Napier, B, Seddon, A, Sujecki, S, Benson, T, Farries, M, Ward, J, Lamrini, S, Scholle, K & Fuhrberg, P 2013, Numerical demonstration of 3-12µm supercontinuum generation in large-core step-index chalcogenide fibers pumped at 4.5µm . in Nonlinear Optics Technical Digest . Optical Society of America, pp. NW4A.09, Nonlinear Optics (NLO 2013), Kohala Coast, Hawaii, United States, 21/07/2013 .
Technical University of Denmark Orbit
Technical University of Denmark Orbit
We numerically demonstrate the generation of a 3-12µm mid-infrared supercontinuum in a large-core step-index fiber made from highly nonlinear chalcogenide (As2Se3) pumped at 4.5µm with 40ps, 1kW peak power pulses.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::185c986de025c709af2779b36f0d4e76
https://orbit.dtu.dk/en/publications/7f3e1724-acd4-4838-ab05-6c664d0bcbd5
https://orbit.dtu.dk/en/publications/7f3e1724-acd4-4838-ab05-6c664d0bcbd5
Publikováno v:
Dupont, S V L, Petersen, C, Thøgersen, J, Agger, C, Bang, O & Keiding, S R 2012, ' IR microscopy utilizing intense supercontinuum light source ', Optics Express, vol. 20, no. 5, pp. 4887-4892 . https://doi.org/10.1364/OE.20.004887
Dupont, S, Petersen, C, Thøgersen, J, Agger, C, Bang, O & Keiding, S R 2012, ' IR microscopy utilizing intense supercontinuum light source ', Optics Express, vol. 20, no. 5, pp. 4887-4892 . https://doi.org/10.1364/OE.20.004887
Dupont, S, Petersen, C, Thøgersen, J, Agger, C, Bang, O & Keiding, S R 2012, ' IR microscopy utilizing intense supercontinuum light source ', Optics Express, vol. 20, no. 5, pp. 4887-4892 . https://doi.org/10.1364/OE.20.004887
Combining the molecular specificity of the infrared spectral region with high resolution microscopy has been pursued by researchers for decades. Here we demonstrate infrared supercontinuum radiated from an optical fiber as a promising new light sourc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32dc8824a2554728e26bcab4eabd4962
https://pure.au.dk/portal/da/publications/ir-microscopy-utilizing-intense-supercontinuum-light-source(abe380cd-45dc-4baf-8bbd-fa7b563063fa).html
https://pure.au.dk/portal/da/publications/ir-microscopy-utilizing-intense-supercontinuum-light-source(abe380cd-45dc-4baf-8bbd-fa7b563063fa).html
Publikováno v:
Steffensen, H, Agger, C & Bang, O 2012, ' Influence of two-photon absorption on soliton self-frequency shift ', Optical Society of America. Journal B: Optical Physics, vol. 29, no. 3, pp. 484-492 . https://doi.org/10.1364/JOSAB.29.000484
In this paper we develop an analytical model for the soliton self-frequency shift, which includes second- and thirdorder dispersion, self-steepening, the full Raman term, and, for the first time to our best knowledge, the effect oftwo-photon absorpti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e82ce9b32243e1b0b87ace0d8477591
https://orbit.dtu.dk/en/publications/69b0c669-893e-4eba-9146-f384249663e8
https://orbit.dtu.dk/en/publications/69b0c669-893e-4eba-9146-f384249663e8
Autor:
Sune Dupont, Christian Rosenberg Petersen, Christian Agger, Ole Bang, Søren Rud Keiding, Peter M. Moselund
Publikováno v:
Moselund, P M, Petersen, C, Dupont, S V L, Agger, C, Bang, O & Keiding, S R 2012, ' Supercontinuum: broad as a lamp, bright as a laser, now in the mid-infrared ', Proceedings of SPIE, the International Society for Optical Engineering, vol. 8381 . https://doi.org/10.1117/12.920094
Based on the experience gained developing our market leading visible spectrum supercontinuum sources NKT Photonics has built the first mid-infrared supercontinuum source based on modelocked picosecond fiber lasers. The source is pumped by a ≈ 2 um
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd56f94855f9341d50d6375786afe7ce
https://pure.au.dk/portal/da/publications/supercontinuum-broad-as-a-lamp-bright-as-a-laser-now-in-the-midinfrared(21cbf24e-7d46-4e1f-a3d4-a6882f255f29).html
https://pure.au.dk/portal/da/publications/supercontinuum-broad-as-a-lamp-bright-as-a-laser-now-in-the-midinfrared(21cbf24e-7d46-4e1f-a3d4-a6882f255f29).html
Publikováno v:
Agger, C, Sørensen, S T, Thomsen, C L, Keiding, S R & Bang, O 2011, ' Nonlinear soliton matching between optical fibers ', Optics Letters, vol. 36, no. 13, pp. 2596-2598 . https://doi.org/10.1364/OL.36.002596
ResearcherID
ResearcherID
In this Letter, we propose a generic nonlinear coupling coefficient, η(NL)²=η|γ/β₂|(fiber2)/|γ/β₂|(fiber1), which gives a quantitative measure for the efficiency of nonlinear matching of optical fibers by describing how a fundamental solit
Publikováno v:
Petersen, C, Dupont, S, Agger, C, Thøgersen, J, Bang, O & Keiding, S R 2011, ' Stimulated Raman scattering in soft glass fluoride fibers ', Optical Society of America. Journal B: Optical Physics, vol. 28, no. 10, pp. 2310-2313 .
ResearcherID
Technical University of Denmark Orbit
Petersen, C, Dupont, S V L, Agger, C, Thøgersen, J, Bang, O & Keiding, S R 2011, ' Stimulated Raman scattering in soft glass fluoride fibers ', Optical Society of America. Journal B: Optical Physics, vol. 28, no. 10, pp. 2310-2313 . https://doi.org/10.1364/JOSAB.28.002310
ResearcherID
Technical University of Denmark Orbit
Petersen, C, Dupont, S V L, Agger, C, Thøgersen, J, Bang, O & Keiding, S R 2011, ' Stimulated Raman scattering in soft glass fluoride fibers ', Optical Society of America. Journal B: Optical Physics, vol. 28, no. 10, pp. 2310-2313 . https://doi.org/10.1364/JOSAB.28.002310
We have measured the absolute Raman gain spectrum in short fluoride soft glass fibers with a pump wavelength of 1650nm. We found a peak gain of gR ¼ 4:0 2 × 10−14mW−1.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4990e00093ecc6c70b5387c32ffa6e03
https://orbit.dtu.dk/en/publications/20014c53-edb7-4755-a989-454fd267cc4c
https://orbit.dtu.dk/en/publications/20014c53-edb7-4755-a989-454fd267cc4c
Publikováno v:
Optics express. 16(25)
We demonstrate that the inherent nonlinearity of a microstructured optical fiber (MOF) may be used to achieve label-free selective biosensing, thereby eliminating the need for post-processing of the fiber. This first nonlinear biosensor utilizes a ch