Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Jonas Westberg"'
Autor:
Jonas Westberg, Chu C. Teng, Yifeng Chen, Jie Liu, Link Patrick, Linhan Shen, Michael Soskind, Gerard Wysocki
Publikováno v:
APL Photonics, Vol 8, Iss 12, Pp 120803-120803-9 (2023)
Detection of airborne chemical releases in densely populated urban environments requires precise sensors with high temporal and spatial resolution capable of covering large areas. For this purpose, we present a mobile mid-infrared quantum cascade las
Externí odkaz:
https://doaj.org/article/525a40e9d0804cceb91b0b6854024566
Autor:
Lukasz A. Sterczewski, John L. Reno, Gerard Wysocki, David Burghoff, Qing Hu, Jonas Westberg, Yang Yang
Publikováno v:
ACS Photonics. 7:1082-1087
Terahertz laser frequency combs based on quantum cascade lasers provide coherent, broadband, electrically pumped, THz radiation sources for use in future spectroscopic applications. Here, we explor...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45c7ee5639465ba24677ab5c53fc598e
https://doi.org/10.1021/acsphotonics.9b01758
https://doi.org/10.1021/acsphotonics.9b01758
Autor:
Takashi Hosoda, Tao Feng, Gregory Belenky, Chu C. Teng, Gerard Wysocki, Jonas Westberg, Gela Kipshidze, Leon Shterengas, Alexey Belyanin
Publikováno v:
Journal of Lightwave Technology. 38:1895-1899
The passively mode-locked type-I quantum well cascade diode lasers operating near 2.7 and 3.2 μm generated trains of the ∼10 ps long pulses with average power up to 10 mW. The devices based on laser heterostructures with reinforced carrier confine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db65850742c2d0cebbe86192e3591086
https://doi.org/10.1109/jlt.2020.2971605
https://doi.org/10.1109/jlt.2020.2971605
Publikováno v:
Optics Letters. 48:363
We present the operation of quantum cascade laser frequency combs in an external cavity configuration. Experimental observations show dependence of comb repetition rate and optical spectrum on the external cavity length. The low phase-noise comb regi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::066b6ec05f83e7e56cdd1f0ef44bf461
https://doi.org/10.1364/ol.478950
https://doi.org/10.1364/ol.478950
Autor:
Baker, Mariwan, Nielsen, Morten, Hansen, Olfred, Jahn, Jonas Westberg, Korreman, Stine, Brink, Carsten
Publikováno v:
In International Journal of Radiation Oncology, Biology, Physics 1 November 2011 81(3):849-855
Autor:
Persson, Gitte Fredberg, Nygaard, Ditte Eklund, Brink, Carsten, Jahn, Jonas Westberg, Munck af Rosenschöld, Per, Specht, Lena, Korreman, Stine Sofia
Publikováno v:
In Radiotherapy and Oncology 2010 96(1):61-66
Publikováno v:
ESSCIRC
The terahertz frequency range beyond 3 THz has exciting potential to have a transformative impact in a wide range of applications, including chemical and biomedical sensing, spectroscopy, imaging, and short-distance wireless communication. While ther
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18d9a217a7df5ee762e431999bbc6526
https://doi.org/10.1109/lssc.2019.2933332
https://doi.org/10.1109/lssc.2019.2933332
Autor:
Chu Teng, Jie Liu, Jonas Westberg, Michael G. Soskind, Linhan Shen, Gerard Wysocki, Yifeng Chen, Link Patrick
Publikováno v:
Optical and Quantum Sensing and Precision Metrology.
Dual-comb spectroscopy of trace chemicals using mid-infrared quantum cascade laser frequency combs: recent advances and field applications
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2b5bbfc395fc7285c00fc00f4457c13
https://doi.org/10.1117/12.2587217
https://doi.org/10.1117/12.2587217
Publikováno v:
OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES).
We present a QCL-based mid-IR dual-comb spectrometer that can be automatically reconfigured between two sensing modalities: an extractive point sensing and a remote retroreflector-based sensing. A proof-of-concept field demonstration presents its ada
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a30f4f20af14eaaa14a620e8aef852b
https://doi.org/10.1364/ais.2021.jtu6e.4
https://doi.org/10.1364/ais.2021.jtu6e.4
Publikováno v:
Conference on Lasers and Electro-Optics.
We present a recent field deployment of a mid-IR quantum cascade laser dual-comb spectroscopic extractive sensing system equipped with a 76m multi-pass cell. We report the system capability in monitoring and localizing multiple gas emission sources.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a81ecf74d4d2adf0a7597687fcc0dbe2
https://doi.org/10.1364/cleo_at.2021.aw2s.1
https://doi.org/10.1364/cleo_at.2021.aw2s.1