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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77条记录   Thulium channel waveguide laser in a monoclinic double tungstate with 70% slope efficiency [作者：van Dalfsen, K; Aravazhi, S; Grivas, C; Garcia-Blanco, SM; Pollnau, M,期刊：OPTICS LETTERS, 页码：887-889 , 文章类型： Article，,卷期：2012年37-5] Laser experiments were performed on buried, ridge-type channel waveguides in an 8 at.% thulium-doped, yttrium-gadolinium-lutetium codoped monoclinic double tungstate. A maximum slope efficiency of 70% and output powers u... Spatial optical filter sensor based on hollow-core silica tube [作者：Ferreira, MS; Schuster, K; Kobelke, J; Santos, JL; Frazao, O,期刊：OPTICS LETTERS, 页码：890-892 , 文章类型： Article，,卷期：2012年37-5] A spatial optical filter based on a hollow-core silica tube is proposed. Because of the hollow-core dimensions, it is possible to obtain a periodical spatial filter ranging from 1200 to 1700 nm with a channel spacing of ... Dynamic Brillouin gratings permanently sustained by chaotic lasers [作者：Santagiustina, M; Ursini, L,期刊：OPTICS LETTERS, 页码：893-895 , 文章类型： Article，,卷期：2012年37-5] A method to induce only one permanent and localized dynamic Brillouin grating in polarization maintaining optical fibers is introduced. The generation of the grating exploits the thumbtack correlation of the chaotic lase... AlxGa1-xN-based deep-ultraviolet 320 x 256 focal plane array [作者：Cicek, E; Vashaei, Z; Huang, EKW; McClintock, R; Razeghi, M,期刊：OPTICS LETTERS, 页码：896-898 , 文章类型： Article，,卷期：2012年37-5] We report the synthesis, fabrication, and testing of a 320 x 256 focal plane array (FPA) of back-illuminated, solar-blind, p-i-n, AlxGa1-xN-based detectors, fully realized within our research laboratory. We implemented a... Scaling submillimeter single-cycle transients toward megavolts per centimeter field strength via optical rectification in the organic crystal OH1 [作者：Ruchert, C; Vicario, C; Hauri, CP,期刊：OPTICS LETTERS, 页码：899-901 , 文章类型： Article，,卷期：2012年37-5] We present the generation of high-power single-cycle terahertz (THz) pulses in the organic salt crystal 2-[3-(4-hydroxystyryl)-5.5-dimethylcyclohex-2-enylidene]malononitrile or OH1. Broadband THz radiation with a central... Observation of microsphere movement driven by optical pulse: comment [作者：Pozar, T; Mozina, J,期刊：OPTICS LETTERS, 页码：902-902 , 文章类型： Article，,卷期：2012年37-5] We show that fiber-delivered, pulsed laser propulsion of glass microspheres, as observed in a recent Letter [Opt. Lett. 36, 1996 (2011).], due to only radiation pressure cannot explain the measured maximum velocity of mi... Limitations of superoscillation filters in microscopy applications [作者：Hyvarinen, HJ; Rehman, S; Tervo, J; Turunen, J; Sheppard, CJR,期刊：OPTICS LETTERS, 页码：903-905 , 文章类型： Article，,卷期：2012年37-5] The idea of superresolving pupil filters comes from the concept of superoscillations that may occur in regions of a band-limited signal with small amplitude having oscillations faster than the fastest Fourier component o... Bilayer-fish-scale ultrabroad terahertz bandpass filter [作者：Zhang, XQ; Gu, JQ; Cao, W; Han, JG; Lakhtakia, A; Zhang, WL,期刊：OPTICS LETTERS, 页码：906-908 , 文章类型： Article，,卷期：2012年37-5] A bilayer fish-scale metamaterial is experimentally demonstrated to function as a broad bandpass filter in the terahertz regime. The measured 3 dB-bandwidth for normal incidence is 1.13 THz with a high transmittance. The... Nonparaxial TE and TM vector beams with well-defined orbital angular momentum [作者：Brandao, PA,期刊：OPTICS LETTERS, 页码：909-911 , 文章类型： Article，,卷期：2012年37-5] A new formalism is developed for diffraction-free vector beams in free space. The solutions of Maxwell's equations are separated into two polarization modes, TE and TM. We discuss the validity of the method by applying i... Limits for superfocusing with finite evanescent wave amplification [作者：Gordon, R,期刊：OPTICS LETTERS, 页码：912-914 , 文章类型： Article，,卷期：2012年37-5] Perfect lensing using negative refractive index materials and radiationless electromagnetic interference both provides extreme subwavelength focusing by "amplifying" evanescent wave components that are usually lost. This... Amplification of the phase contrast signal at very high x-ray energies [作者：Olivo, A; Diemoz, PC; Bravin, A,期刊：OPTICS LETTERS, 页码：915-917 , 文章类型： Article，,卷期：2012年37-5] X-ray phase contrast imaging is increasingly being used in several fields, both at synchrotron facilities and with laboratory sources, due to its increased sensitivity compared to conventional x-ray methods. One importan... 5 mu m laser source for frequency metrology based on difference frequency generation [作者：Bressel, U; Ernsting, I; Schiller, S,期刊：OPTICS LETTERS, 页码：918-920 , 文章类型： Article，,卷期：2012年37-5] A narrow-linewidth cw 5 mu m source based on difference frequency generation of a 1.3 mu m quantum dot external cavity diode laser and a cw Nd:YAG laser in periodically poled MgO : LiNbO3 has been developed and evaluated... Realizable differential matrices for depolarizing media [作者：Germer, TA,期刊：OPTICS LETTERS, 页码：921-923 , 文章类型： Article，,卷期：2012年37-5] The evolution of a Stokes vector through depolarizing media is considered. A general form for the differential matrix is found that is appropriate in the presence of depolarization and it is parameterized in a manner tha... Gouy phase for full-aperture spherical and cylindrical waves [作者：Tyc, T,期刊：OPTICS LETTERS, 页码：924-926 , 文章类型： Article，,卷期：2012年37-5] We investigate the Gouy phase shift for full-aperture waves converging to a focal point from all directions in two and three dimensions. We find a simple interpretation for the Gouy phase in this situation and show that ... High-fidelity, 160 fs, 5 mu J pulses from an integrated Yb-fiber laser system with a fiber stretcher matching a simple grating compressor [作者：Fernandez, A; Jespersen, K; Zhu, L; Gruner-Nielsen, L; Baltuska, A; Galvanauskas, A; Verhoef, AJ,期刊：OPTICS LETTERS, 页码：927-929 , 文章类型： Article，,卷期：2012年37-5] Although femtosecond microjoule Yb-fiber systems are attractive because of a straightforward power scalability, they inherently suffer from a lowered pulse fidelity as a result of complex dispersion and nonlinearity mana... Frequency domain aperture for the gain bandwidth reduction of stimulated Brillouin scattering [作者：Wiatrek, A; Preussler, S; Jamshidi, K; Schneider, T,期刊：OPTICS LETTERS, 页码：930-932 , 文章类型： Article，,卷期：2012年37-5] In this Letter, we propose a novel method based on the inhomogeneous Brillouin gain saturation to reduce the gain bandwidth significantly below its natural value. Based on our first experiments, we report a decrease of t...