Applied Physics B

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Twisted clad microstructured optical fibers: revisited
Applied Physics B - Tập 117 - Trang 481-486 - 2014
M. A. Baqir, P. K. Choudhury
The paper discusses confinements corresponding to low-order sustained hybrid modes in twisted clad microstructured optical fiber with twists in the form of conducting sheath helix structure introduced at the core–clad interface and inclined at certain angles. Dispersion relations for such fiber structures are deduced under strict electromagnetic boundary conditions. Varying the angle of pitch (of ...... hiện toàn bộ
Comprehensive kinetic model for electron-beam-excited XeCs+ ionic excimers
Applied Physics B - Tập 60 - Trang 391-403 - 1995
J. L. Lawless, D. Lo
A theoretical model that accounts for fundamental plasma processes leading to the formation and decay of XeCs+ ionic excimers in high-pressure electron-beam-excited Ar/Xe/Cs mixtures was developed. Numerical calculations based on the model were performed. For atmospheric gas mixtures, the model predicts an intrinsic efficiency (energy stored in upper state/energy deposited) of 18%. Model calculati...... hiện toàn bộ
Influence of the 61 S 0–63 P 1 resonance on continuous Lyman-α generation in mercury
Applied Physics B - Tập 113 - Trang 559-566 - 2013
Daniel Kolbe, Martin Scheid, Jochen Walz
Continuous coherent radiation in the vacuum ultraviolet at 122 nm (Lyman-α) can be generated using sum-frequency mixing of three fundamental laser beams in mercury vapor. One of the fundamental beams is at 254 nm wavelength, which is close to the 61 S 0–63 P 1 resonance in mercury. Experiments have been...... hiện toàn bộ
Photoacoustic system for on-line process monitoring of hydrogen sulfide (H2S) concentration in natural gas streams
Applied Physics B - Tập 85 - Trang 315-321 - 2006
A. Varga, Z. Bozóki, M. Szakáll, G. Szabó
A dual-channel hydrogen sulfide (H2S) concentration measuring system based on photoacoustic spectroscopy is described. The system uses a single-mode, fiber-coupled, room-temperature-operated, telecommunication-type diode laser with a wavelength of 1574.5 nm and an output optical power of 40 mW and two identical resonant photoacoustic cells to achieve minimum detectable H2S concentration at 0.5 ppm...... hiện toàn bộ
Third and fifth harmonics generation in air and nanoparticle-containing plasmas using 150-kHz fiber laser
Applied Physics B - Tập 126 Số 5 - 2020
Ganjaboy S. Boltaev, Naveed A. Abbasi, Vyacheslav V. Kim, Mazhar Iqbal, Sharjeel Khan, A. I. Zvyagin, M. S. Smirnov, O. V. Ovchinnikov, R. A. Ganeev, A. S. Alnaser
Stress, absorptance and laser-induced damage threshold properties of 355-nm HR coatings
Applied Physics B - Tập 80 - Trang 1007-1010 - 2005
M. Zhan, Y. Zhao, G. Tian, H. He, J. Shao, Z. Fan
A number of 355-nm Al2O3/MgF2 high-reflectance (HR) coatings were prepared by electron-beam evaporation. The influences of the number of coating layers and deposition temperature on the 355-nm Al2O3/MgF2 HR coatings were investigated. The stress was measured by viewing the substrate deformation before and after coating deposition using an optical interferometer. The laser-induced damage threshold ...... hiện toàn bộ
Nonadiabatic induced dipole moment by high intensity femtosecond optical pulses
Applied Physics B - Tập 78 - Trang 821-824 - 2004
I.G. Koprinkov
Nonadiabatic dressed states and nonadiabatic induced dipole moment in the leading order of nonadiabaticity is proposed. The nonadiabatic induced dipole moment is studied in the femtosecond time domain.
Object identification in computational ghost imaging based on deep learning
Applied Physics B - Tập 126 - Trang 1-10 - 2020
Jianbo Li, Mingnan Le, Jun Wang, Wei Zhang, Bin Li, Jinye Peng
Processing method plays an important role in accelerating imaging process in ghost imaging. In this study, we propose a processing method with the Hadamard matrix and a deep neural network called ghost imaging hadamard neural network (GIHNN). We focus on how to break through the bottleneck of image reconstruction time, and GIHNN can identify an object before the imaging process. Our research revea...... hiện toàn bộ
Dependency of injection seeding and spectral purity of a single resonant KTP optical parametric oscillator on the phase matching condition
Applied Physics B - Tập 89 - Trang 1-7 - 2007
P. Mahnke, H.H. Klingenberg, A. Fix, M. Wirth
For spectroscopic and remote sensing applications injection seeded optical parametric oscillators (OPOs) are well established. In this paper we study the dependencies of signal resonant injection seeding of an OPO on its resonator length, phase matching angle and pump power in detail. The quality of the seeding process is assessed by stabilising the seed laser on a molecular absorption line of wat...... hiện toàn bộ
Photostability of single-photon emission from a single quantum dot in the 650-nm wavelength band at room temperature
Applied Physics B - - 2009
Xingsheng Xu, Toshiki Yamada, Akira Otomo
Tổng số: 7,457   
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