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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共32条记录   Direct frequency-comb spectroscopy of a dipole-forbidden clock transition in trapped Ca-40(+) ions [作者：Wolf, AL; Morgenweg, J; Koelemeij, JCJ; van den Berg, SA; Ubachs, W; Eikema, KSE,期刊：OPTICS LETTERS, 页码：49-51 , 文章类型： Article，,卷期：2011年36-1] We demonstrate direct frequency-comb (FC) spectroscopy of the dipole-forbidden 4s(2)S(1/2)-3d(2)D(5/2) transition in trapped Ca-40(+) ions using an unamplified FC laser. The excitation is detected with nearly 100% effici... Waveguide-integrated telecom-wavelength photodiode in deposited silicon [作者：Preston, K; Lee, YHD; Zhang, MA; Lipson, M,期刊：OPTICS LETTERS, 页码：52-54 , 文章类型： Article，,卷期：2011年36-1] We demonstrate photodiodes in deposited polycrystalline silicon at 1550 nm wavelength with 0.15 A/W responsivity, 40 nA dark current, and gigahertz time response. Subband absorption is mediated by defects that are natura... Quantitative x-ray phase-contrast imaging using a single grating of comparable pitch to sample feature size [作者：Morgan, KS; Paganin, DM; Siu, KKW,期刊：OPTICS LETTERS, 页码：55-57 , 文章类型： Article，,卷期：2011年36-1] The ability to quantitatively retrieve transverse phase maps during imaging by using coherent x rays often requires a precise grating or analyzer-crystal-based setup. Imaging of live animals presents further challenges w... Nanomembrane transfer process for intricate photonic device applications [作者：Zablocki, MJ; Sharkawy, A; Ebil, O; Prather, DW,期刊：OPTICS LETTERS, 页码：58-60 , 文章类型： Article，,卷期：2011年36-1] We demonstrate a process for the fabrication and transfer of silicon nanomembranes (Si-NMs) that have been released from their host substrates and redeposited on foreign flexible or flat substrates. The transfer process ... Doppler-free spectroscopy of mercury at 253.7 nm using a high-power, frequency-quadrupled, optically pumped external-cavity semiconductor laser [作者：Paul, J; Kaneda, Y; Wang, TL; Lytle, C; Moloney, JV; Jones, RJ,期刊：OPTICS LETTERS, 页码：61-63 , 文章类型： Article，,卷期：2011年36-1] We have developed a stable, high-power, single-frequency optically pumped external-cavity semiconductor laser system and generate up to 125 mW of power at 253.7 nm using successive frequency doubling stages. We demonstra... Off-resonance laser frequency stabilization using the Faraday effect [作者：Marchant, AL; Handel, S; Wiles, TP; Hopkins, SA; Adams, CS; Cornish, SL,期刊：OPTICS LETTERS, 页码：64-66 , 文章类型： Article，,卷期：2011年36-1] We present a simple technique for stabilization of a laser frequency off resonance using the Faraday effect in a heated vapor cell with an applied magnetic field. In particular, we demonstrate stabilization of a 780 nm l... Waveguides in three-dimensional photonic-bandgap materials by direct laser writing and silicon double inversion [作者：Staude, I; von Freymann, G; Essig, S; Busch, K; Wegener, M,期刊：OPTICS LETTERS, 页码：67-69 , 文章类型： Article，,卷期：2011年36-1] Three-dimensional complete photonic-bandgap materials offer unique opportunities regarding the integration of optical waveguide architectures in three dimensions. However, corresponding experimental realizations are trul... Local fringe density determination by adaptive filtering [作者：Vargas, J; Quiroga, JA; Belenguer, T,期刊：OPTICS LETTERS, 页码：70-72 , 文章类型： Article，,卷期：2011年36-1] We demonstrate a method to easily and quickly determine the local fringe density map of a fringe pattern. The method is based on an isotropic adaptive bandpass filter that is tuned at different frequencies. The modulatio... Integrated Nd-doped borosilicate glass microsphere laser [作者：Murugan, GS; Zervas, MN; Panitchob, Y; Wilkinson, JS,期刊：OPTICS LETTERS, 页码：73-75 , 文章类型： Article，,卷期：2011年36-1] A neodymium-doped BK7 glass microsphere laser integrated with a planar ion-exchanged waveguide pumped at 0.8 mu m has been demonstrated. The pump radiation was launched by evanescent coupling from the waveguide, and the ... High-resolution Cs-133 6S-6D, 6S-8S two-photon spectroscopy using an intracavity scheme [作者：Chen, YH; Liu, TW; Wu, CM; Lee, CC; Lee, CK; Cheng, WY,期刊：OPTICS LETTERS, 页码：76-78 , 文章类型： Article，,卷期：2011年36-1] This Letter presents an intracavity scheme for diode laser based two-photon spectroscopy. To demonstrate generality, three Cs-133 hyperfine transition groups of different wavelengths are shown. For the 6S-6D transitions,... Off-axis compressed holographic microscopy in low-light conditions [作者：Marim, M; Angelini, E; Olivo-Marin, JC; Atlan, M,期刊：OPTICS LETTERS, 页码：79-81 , 文章类型： Article，,卷期：2011年36-1] This Letter reports a demonstration of off-axis compressed holography in low-light level imaging conditions. An acquisition protocol relying on a single exposure of a randomly undersampled diffraction map of the optical ... Two-dimensional dissipative solitons supported by localized gain [作者：Kartashov, YV; Konotop, VV; Vysloukh, VA,期刊：OPTICS LETTERS, 页码：82-84 , 文章类型： Article，,卷期：2011年36-1] We show that the balance between localized gain and nonlinear cubic dissipation in the two-dimensional nonlinear Schrodinger equation allows for the existence of stable localized modes that we identify as solitons. Such ... Stable radially symmetric and azimuthally modulated vortex solitons supported by localized gain [作者：Lobanov, VE; Kartashov, YV; Vysloukh, VA; Torner, L,期刊：OPTICS LETTERS, 页码：85-87 , 文章类型： Article，,卷期：2011年36-1] We discover that a spatially localized gain supports stable vortex solitons in media with cubic nonlinearity and two-photon absorption. The interplay between nonlinear losses and gain in amplifying rings results in the s... Experimental demonstration of linear precompensation of a nonlinear transfer function due to second-harmonic generation [作者：Vidal, S; Luce, J; Penninckx, D,期刊：OPTICS LETTERS, 页码：88-90 , 文章类型： Article，,卷期：2011年36-1] We report on what we believe is the first experimental demonstration of the linear precompensation of a nonlinear transfer function due to frequency conversion. As a proof of principle, we show the effective precompensat... Symmetrically glass-clad photonic crystal nanocavities with ultrahigh quality factors [作者：Song, BS; Jeon, SW; Noda, S,期刊：OPTICS LETTERS, 页码：91-93 , 文章类型： Article，,卷期：2011年36-1] We design and fabricate ultra-high-quality (Q) photonic nanocavities in a symmetrically glass-clad silicon (Si) two-dimensional (2D) photonic crystal (PhC) structure. We theoretically investigate the dependence of the re... Energy scaling of 4.3 mu m room temperature Fe:ZnSe laser [作者：Myoung, N; Martyshkin, DV; Fedorov, VV; Mirov, SB,期刊：OPTICS LETTERS, 页码：94-96 , 文章类型： Article，,卷期：2011年36-1] We demonstrate a fourfold increase of the output energy of the gain-switched mid-IR Fe:ZnSe laser. Iron doping of the ZnSe polycrystalline samples was realized using a postgrowth thermal-diffusion method from the meta...