- Temperature-induced index gratings and their impact on mode instabilities in high-power fiber laser systems
[作者:Jauregui, C; Eidam, T; Otto, HJ; Stutzki, F; Jansen, F; Limpert, J; Tunnermann, A,期刊:OPTICS EXPRESS, 页码:440-451 , 文章类型: Article,,卷期:2012年20-1]
- Mode-interference along an active fiber in high-power operation gives rise to a longitudinally oscillating temperature profile which, in turn, is converted into a strong index grating via the thermo-optic effect. In the ...
- Aberration corrections for free-space optical communications in atmosphere turbulence using orbital angular momentum states
[作者:Zhao, SM; Leach, J; Gong, LY; Ding, J; Zheng, BY,期刊:OPTICS EXPRESS, 页码:452-461 , 文章类型: Article,,卷期:2012年20-1]
- The effect of atmosphere turbulence on light's spatial structure compromises the information capacity of photons carrying the Orbital Angular Momentum (OAM) in free-space optical (FSO) communications. In this paper, we s...
- Bragg waveguides with low-index liquid cores
[作者:Rowland, KJ; Afshar, VS; Stolyarov, A; Fink, Y; Monro, TM,期刊:OPTICS EXPRESS, 页码:48-62 , 文章类型: Article,,卷期:2012年20-1]
- The spectral properties of light confined to low-index media by binary layered structures is discussed. A novel phase-based model with a simple analytical form is derived for the approximation of the center of arbitrary ...
- Correcting the detrimental effects of nonuniform intensity distribution on fiber-transmitting laser speckle imaging of blood flow
[作者:Zhang, HY; Li, PC; Feng, NY; Qiu, JJ; Li, B; Luo, WH; Luo, QM,期刊:OPTICS EXPRESS, 页码:508-517 , 文章类型: Article,,卷期:2012年20-1]
- Laser speckle spatial contrast analysis (LSSCA) is superior to laser speckle temporal contrast analysis (LSTCA) in monitoring the fast change in blood flow due to its advantage of high temporal resolution. However, the a...
- Femtosecond laser induced synthesis of Au nanoparticles mediated by chitosan
[作者:Ferreira, PHD; Vivas, MG; De Boni, L; dos Santos, DS; Balogh, DT; Misoguti, L; Mendonca, CR,期刊:OPTICS EXPRESS, 页码:518-523 , 文章类型: Article,,卷期:2012年20-1]
- This paper reports the synthesis of Au nanoparticles by 30-fs pulses irradiation of a sample containing HAuCl4 and chitosan, a biopolymer used as reducing agent and stabilizer. We observed that it is a multi-photon induc...
- Tuning surface plasmons in interconnected hemispherical Au shells
[作者:Krohne-Nielsen, P; Novikov, SM; Beermann, J; Morgen, P; Bozhevolnyi, SI; Albrektsen, O,期刊:OPTICS EXPRESS, 页码:534-546 , 文章类型: Article,,卷期:2012年20-1]
- We present a new approach for making interconnected hemispherical shells by stripping Au from templates of anodized aluminum, where the metal thickness can be adjusted without affecting the outer radius of curvature, fil...
- 2 x 2 MIMO radio-over-fiber system at 60 GHz employing frequency domain equalization
[作者:Lin, CT; Ng'oma, A; Lee, WY; Wei, CC; Wang, CY; Lu, TH; Chen, J; Jiang, WJ; Ho, CH,期刊:OPTICS EXPRESS, 页码:562-567 , 文章类型: Article,,卷期:2012年20-1]
- This work experimentally demonstrates the efficacy of the 2 x 2 multiple-input multiple-output (MIMO) technique for capacity improvement of a 60-GHz radio-over-fiber (RoF) system employing single-carrier modulation forma...
- Tentative investigation towards precision polishing of optical components with ultrasonically vibrating bound-abrasive pellets
[作者:Li, YG; Wu, YB; Wang, J; Yang, W; Guo, YB; Xu, Q,期刊:OPTICS EXPRESS, 页码:568-575 , 文章类型: Article,,卷期:2012年20-1]
- Ultrasonic vibration has been employed to improve the quality of machined surface in the grinding of brittle materials. In this report, we transplant the philosophy of ultrasonic vibration assisted grinding to chemo-mech...
- CO2 laser induced refractive index changes in optical polymers
[作者:Liu, Q; Chiang, KS; Reekie, L; Chow, YT,期刊:OPTICS EXPRESS, 页码:576-582 , 文章类型: Article,,卷期:2012年20-1]
- We study the infrared photosensitivity properties of two optical polymer materials, benzocyclobutene (BCB) and epoxy OPTOCAST 3505, with a 10.6 mu m CO2 laser. We discover that the CO2 laser radiation can lower the refra...
- Enhanced resolution in subsurface near-field optical microscopy
[作者:Krutokhvostov, R; Govyadinov, AA; Stiegler, JM; Huth, F; Chuvilin, A; Carney, PS; Hillenbrand, R,期刊:OPTICS EXPRESS, 页码:593-600 , 文章类型: Article,,卷期:2012年20-1]
- We report an experimental analysis of the capabilities of scattering-type scanning near-field optical microscopy for mapping subsurface features at varying depths. For the first time, we demonstrate experimentally that b...
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