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pro vyhledávání: '"59"'
Autor:
Stephen Edward, Vanessa Verrina, Stefan Witte, Paul C. M. Planken, Alessandro Antoncecchi, Hao Zhang
Publikováno v:
Applied Optics, 59(30), 9499-9509. The Optical Society
Verrina, V, Edward, S, Zhang, H, Antoncecchi, A, Witte, S & Planken, P 2020, ' Role of scattering by surface roughness in the photoacoustic detection of hidden micro-structures ', Applied Optics, vol. 59, no. 30, pp. 9499-9509 . https://doi.org/10.1364/AO.397264
Verrina, V, Edward, S, Zhang, H, Antoncecchi, A, Witte, S & Planken, P 2020, ' Role of scattering by surface roughness in the photoacoustic detection of hidden micro-structures ', Applied Optics, vol. 59, no. 30, pp. 9499-9509 . https://doi.org/10.1364/AO.397264
We present an experimental study in which we compare two different pump–probe setups to generate and detect high-frequency laser-induced ultrasound for the detection of gratings buried underneath optically opaque metal layers. One system is built a
Long-wave infrared multi-wavelength optical source for standoff detection of chemical warfare agents
Autor:
Jean-Michel Melkonian, Jean-Baptiste Dherbecourt, Julie Armougom, Jiří Kadlčák, Myriam Raybaut, Guillaume Gorju, Antoine Godard, Nicolas Cézard, Riaan Stuart Coetzee, Valdas Pasiskevicius
Publikováno v:
Applied optics
Applied optics, Optical Society of America, 2020, 59 (35), pp.11156-11166. ⟨10.1364/AO.410053⟩
Applied optics, Optical Society of America, 2020, 59 (35), pp.11156-11166. ⟨10.1364/AO.410053⟩
We have designed and built a wavelength-tunable optical source for standoff detection of gaseous chemicals by differential absorption spectrometry in the long-wave infrared. It is based on a nanosecond 2 µm single-frequency optical parametric oscill
Publikováno v:
Applied Optics
Applied optics
Applied optics, Optical Society of America, 2020, 59 (4), pp.910. ⟨10.1364/AO.378122⟩
Applied optics
Applied optics, Optical Society of America, 2020, 59 (4), pp.910. ⟨10.1364/AO.378122⟩
International audience; A method of optimizing and manufacturing a diffractive blazed grating array (DBA) is proposed to create a visual security feature when illuminated by a divergent Light emitting diode (LED) source. A pure phase grating array se
Autor:
Jean-Baptiste Perraud, François Simoens, Benoit Recur, Patrick Mounaix, J. Bou Sleiman, Hugo Balacey, Jean-Paul Guillet
Publikováno v:
Applied optics
Applied optics, Optical Society of America, 2016, 55, pp.9185-9185. ⟨10.1364/AO.55.009185⟩
Applied optics, 2016, 55, pp.9185-9185. ⟨10.1364/AO.55.009185⟩
Applied optics, Optical Society of America, 2016, 55, pp.9185-9185. ⟨10.1364/AO.55.009185⟩
Applied optics, 2016, 55, pp.9185-9185. ⟨10.1364/AO.55.009185⟩
International audience; Two-dimensional (2D) terahertz imaging and 3D visualization suffer from severe artifacts since an important part of the terahertz beam is reflected, diffracted, and refracted at each interface. These phenomena are due to refra