Results 11 to 20 of about 908,256 (325)

Soliton absorption spectroscopy [PDF]

Physical Review A, 2010
We analyze optical soliton propagation in the presence of weak absorption lines with much narrower linewidths as compared to the soliton spectrum width using the novel perturbation analysis technique based on an integral representation in the spectral ...
A. Biswas, E. Sorokin, G. P. Agrawal, I. T. Sorokina, J. Mandon, K. E. Oughstun, N. N. Akhmediev, S. A. Akhmanov, V. Kalashnikov, V. L. Kalashnikov, V. S. Butylkin   +10 more
core   +4 more sources

Relic Neutrino Absorption Spectroscopy [PDF]

Physical Review D, 2004
Resonant annihilation of extremely high-energy cosmic neutrinos on big-bang relic anti-neutrinos (and vice versa) into Z-bosons leads to sizable absorption dips in the neutrino flux to be observed at Earth.
A. Blanchard, A.D. Dolgov, A.R. Jacobson, A.W. Blain, Andreas Ringwald, B. Kayser, B.P. Konstantinov, Birgit Eberle, C. Spiering, C. Weinheimer, C. Weinheimer, C.E. Aalseth, C.E. Aalseth, D. Fargion, D.N. Spergel, D.S. Gorbunov, D.V. Semikoz, D.V. Semikoz, E. Roulet, F. Feruglio, F. Feruglio, G.T. Zatsepin, H. Athar, H. Päs, H.V. Klapdor-Kleingrothaus, H.V. Klapdor-Kleingrothaus, H.V. Klapdor-Kleingrothaus, J. Bernstein, J.F. Beacom, J.F. Beacom, J.G. Learned, J.N. Bahcall, K. Greisen, K. Hagiwara, K. Mannheim, K. Mannheim, K.N. Abazajian, L. Bento, L.A. Anchordoqui, Liguo Song, M. Tegmark, N. Gehrels, N.G. Lehtinen, O. Elgaroy, O.E. Kalashev, O.E. Kalashev, P. Bhattacharjee, P. Chen, P. Gondolo, P. Gorham, P. Madau, P. Palunas, P. Singh, P. Sreekumar, P.P. Kronberg, R. Aloisio, R. Cowsik, R. Gandhi, R. Gandhi, R. Wigmans, R.M. Baltrusaitis, S. Davidson, S. Hannestad, S. Kazantzidis, S. Nussinov, S. Yoshida, S. Yoshida, S. Yoshida, S. Yoshida, S.D. Wick, S.M. Bilenky, S.W. Allen, T. Hara, T. Hara, T.J. Weiler, T.J. Weiler, T.J. Weiler, Thomas J. Weiler, U. Keshet, V. Barger, V. Berezinsky, V. Berezinsky, V.D. Barger, V.H. Regener, V.M. Lobashev, V.S. Berezinsky, V.S. Berezinsky, V.S. Berezinsky, W. Hu, X. Bertou, Y.Y. Wong, Z. Fodor, Z. Fodor, Z. Fodor, Z. Fodor, Z. Fodor   +95 more
core   +4 more sources

Quantum Cascade Laser Absorption Spectroscopy as a Plasma Diagnostic Tool: An Overview [PDF]

Sensors, 2010
The recent availability of thermoelectrically cooled pulsed and continuous wave quantum and inter-band cascade lasers in the mid-infrared spectral region has led to significant improvements and new developments in chemical sensing techniques using in ...
Jürgen Röpcke, Norbert Lang, Marko Hübner, Frank Hempel, Stefan Welzel, Paul B. Davies   +5 more
doaj   +2 more sources

Toluidine Blue for the Determination of Binding of Anionic Polysaccharides to Lipid Raft Domains by Absorption Spectroscopy [PDF]

Membranes
The complexes of negatively charged polysaccharides with lipid vesicles have been shown to have applications in medicine, bioremediation, water purification, and construction of nano-biosensors.
Sandra Gębczyńska, Julia Gdowska, Agata Mikos, Iga Gawrońska, Teresa Janas, Aleksander Czogalla, Tadeusz Janas   +6 more
doaj   +2 more sources

Improving the accuracy of the NDIR-based CO 2 sensor for breath analysis [PDF]

Metrology and Measurement Systems, 2021
The paper presents an analysis and practical study of the temperature and pressure influence on a nondispersive infrared (NDIR) sensor for measuring the concentration of carbon dioxide in human breath.
Artur Prokopiuk, Zbigniew Bielecki, Jacek Wojtas   +2 more
doaj   +1 more source

Absorption Spectroscopy in Dental Tissue Analysis

IEEE Access, 2023
Oral health problems are closely associated with the analysis of dental tissue changes and the stomatologic treatment that follows. This paper explores the use of diffuse reflectance spectroscopy in the detection of dental tissue disorders.
Ales Prochazka, Daniel Martynek, Jindrich Charvat   +2 more
doaj   +1 more source

Colorimetric Phosphate Detection Using Organic DFB Laser Based Absorption Spectroscopy

Micromachines, 2021
A novel compact laser absorption spectrometer is developed for colorimetric detection. We demonstrate the realization of the system as well as example measurements of phosphate in water samples based on the malachite green (MG) method.
Thilo Pudleiner, Elias Sutter, Jörg Knyrim, Christian Karnutsch   +3 more
doaj   +1 more source

Development of a Stable Oxygen Sensor Using a 761 nm DFB Laser and Multi-Pass Absorption Spectroscopy for Field Measurements

Sensors, 2023
An optical sensor system based on wavelength modulation spectroscopy (WMS) was developed for atmospheric oxygen (O2) detection. A distributed feedback (DFB) laser with butterfly packaging was used to target the O2 absorption line at 760.89 nm.
Jvqiang Chang, Qixin He, Mengxin Li
doaj   +1 more source

Non-Hermitian Absorption Spectroscopy

Physical Review Letters, 2022
30 pages including Supplemental Material, 16 ...
Kai Li, Yong Xu
openaire   +3 more sources

Photonic Technology for Precision Metrology

Applied Sciences, 2022
Precision metrology is important for understanding and monitoring various phenomena, especially in special and scientific applications. The subject of the article covers selected aspects of the study of high-resolution measurements of the absorption ...
Jacek Wojtas
doaj   +1 more source