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Shin Arahira et al.
Optics express, 21(6), 7841-7850 (2013-04-03)
In this paper we report the generation of wavelength-multiplexed polarization-entangled photon pairs in the 1.5-μm communication wavelength band by using cascaded optical second nonlinearities (sum-frequency generation and subsequent spontaneous parametric down-conversion, c-SFG/SPDC) in a periodically poled LiNbO(3) ridge waveguide device.
Hongxin Song et al.
Optics express, 18(21), 21892-21904 (2010-10-14)
We constructed a high speed and high-resolution Stokes vector retinal imaging polarimeter with dual electro-optical modulators based on adaptive optics scanning laser ophthalmoscope. By varying the voltages on the EO crystals line by line, we were able to measure over
W Horn et al.
Optics express, 20(24), 26922-26928 (2012-11-29)
We report the fabrication of femtosecond laser-induced, first-order waveguide Bragg gratings in lithium niobate in the low repetition rate regime. Type-II waveguides are written into an x-cut lithium niobate wafer and structured periodically to achieve narrowband reflections at wavelengths around
Hector de Castilla et al.
Materials (Basel, Switzerland), 12(16) (2019-08-10)
Piezoelectric materials have the intrinsic reversible ability to convert a mechanical strain into an electric field and their applications touch our daily lives. However, the complex physical mechanisms linking mechanical and electrical properties make these materials hard to understand. Computationally
Tao Chen et al.
Applied optics, 51(28), 6881-6885 (2012-10-04)
We experimentally demonstrated a compact fiber laser-pumped multichannel PPMgLN-based optical parametric oscillator (OPO) generating total OPO output power of 15.8, 15.2, 14.2, 12.9, and 8.8 W with idler output power of 4.7, 4.3, 4.1, 3.3, and 2.1 W at the
Simone Sanna et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 29(41), 413001-413001 (2017-07-25)
A large number of oxides has been investigated in the last twenty years as possible new materials for various applications ranging from opto-electronics to heterogeneous catalysis. In this context, ferroelectric oxides are particularly promising. The electric polarization plays a crucial
A Zenatti et al.
Journal of nanoscience and nanotechnology, 14(6), 4431-4436 (2014-04-18)
We have studied the experimental conditions needed to produce LaNiO3 (LNO) nanostructures using a template-assisted method. In this route, a mesoporous anodic aluminum oxide template was filled with a chemical solution that had been prepared with polymeric precursors route. The
Huaxiang Yi et al.
Optics express, 20(25), 27562-27568 (2012-12-25)
We demonstrate error-free 80km transmission by a silicon carrier-depletion Mach-Zehnder modulator at 10Gbps and the power penalty is as low as 1.15dB. The devices were evaluated through the bit-error-rate characterizations under the system-level analysis. The silicon Mach-Zehnder modulator was also
Spontaneous emission and nonlinear response enhancement by silver nanoparticles in a Nd³⁺-doped periodically poled LiNbO₃ laser crystal.
Eduardo Yraola et al.
Advanced materials (Deerfield Beach, Fla.), 25(6), 910-915 (2012-11-09)
Lili Xing et al.
Optics letters, 37(17), 3537-3539 (2012-09-04)
Ho3+/Yb3+/Tm3+ tridoped LiNbO3 single crystal exhibiting intense upconversion white light under 980 nm excitation has been successfully fabricated by the Czochralski method. The tridoped LiNbO3 single crystal offers power dependent color tuning properties by simply changing excitation power. Efficient three-photon
Jun Deng et al.
Optics express, 21(3), 3243-3252 (2013-03-14)
In this paper the Fano resonance in a free-standing LiNbO(3) photonic crystal slab is demonstrated. We present a numerical analysis and experimental measurements with free space illumination where the dependence of slab thickness, radius of air holes and lattice types
Y H Chen et al.
Optics express, 20(27), 28989-29001 (2012-12-25)
We report on the design and demonstration of electro-optically tunable, multi-wavelength optical parametric generators (OPGs) based on aperiodically poled lithium niobate (APPLN) crystals. Two methods have been proposed to significantly enhance the electro-optic (EO) tunability of an APPLN OPG constructed
Saeed Ghavami Sabouri et al.
Optics express, 20(25), 27442-27455 (2012-12-25)
We present a theoretical model on the effects of mechanical perturbations on the output power instability of singly-resonant optical parametric oscillators (SR-OPOs). Numerical simulations are performed based on real experimental parameters associated with a SR-OPO designed in our laboratory, which
Hideki Ishizuki et al.
Optics express, 20(18), 20002-20010 (2012-10-06)
We present a next generation of large-aperture periodically poled Mg-doped LiNbO3 (PPMgLN) device with 10-mm thickness. Efficient optical parametric oscillation with 540 mJ output energy at 709 mJ pumping by 1.064 µm laser in 10 nanoseconds operation could be demonstrated
Quan Sheng et al.
Optics express, 20(25), 27953-27958 (2012-12-25)
We report herein the enhancement in both power and efficiency performance of a continuous-wave intra-cavity singly resonant optical parametric oscillator (ICSRO) by introducing finite resonant wave output coupling. While coupling out the resonant wave to useful output, the output coupling
Jin Chen et al.
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 59(12), 2797-2802 (2012-12-12)
A high-frequency broadband focusing transducer based on dimpled LiNbO(3) inversion layer plate has been fabricated and characterized. A spherical surface with a curvature radius of 6 mm is formed on the half-thickness LiNbO(3) inversion layer plate of Y36° cut orientation.
Sz-Chin Steven Lin et al.
Lab on a chip, 12(16), 2766-2770 (2012-07-12)
On-chip manipulation of micro-objects has long been sought to facilitate fundamental biological studies and point-of-care diagnostic systems. In recent years, research on surface acoustic wave (SAW) based micro-object manipulation (i.e., SAW acoustophoresis) has gained significant momentum due to its many
Raiyan T Zaman et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 60(9), 1308-1316 (2019-02-10)
Thin-cap fibroatheroma (TCFA) are the unstable lesions in coronary artery disease that are prone to rupture, resulting in substantial morbidity and mortality worldwide. However, their small size and complex morphologic and biologic features make early detection and risk assessment difficult.
Julien Macario et al.
Optics express, 20(21), 23623-23629 (2012-11-29)
In recent years, the development of new lithium niobate electro-optic modulator designs and material processing techniques have contributed to support the increasing need for faster optical networks by considerably extending the operational bandwidth of modulators. In an effort to provide
Tzyy-Jiann Wang et al.
Optics express, 20(27), 28119-28124 (2012-12-25)
We report ultra-smooth LiNbO(3) microdisk resonators fabricated by selective ion implantation, chemical etching, and thermal treatment. The undercut microdisk structure is produced by chemically etching the buried lattice damage layer formed by selective ion implantation. By thermal treatment, surface tension
Marco Fortunato et al.
Polymers, 11(7) (2019-07-03)
In the present work, poly(vinylidene fluoride) (PVDF) films were produced by spin-coating, and applying different conditions of quenching, in order to investigate the dominant mechanism of the β-phase formation. The influence of the polymer/solvent mass ratio of the solution, the
Jason S Pelc et al.
Optics express, 20(25), 27510-27519 (2012-12-25)
Long-distance quantum communication networks require appropriate interfaces between matter qubit-based nodes and low-loss photonic quantum channels. We implement a downconversion quantum interface, where the single photons emitted from a semiconductor quantum dot at 910 nm are downconverted to 1560 nm
An all-optical technique enables instantaneous single-shot demodulation of images at high frequency.
Swapnesh Panigrahi et al.
Nature communications, 11(1), 549-549 (2020-01-30)
High-frequency demodulation of wide area optical signals in a snapshot manner remains a technological challenge. If solved, it could open tremendous perspectives in 3D imaging, vibrometry, free-space communications, automated vision, or ballistic photon imaging in scattering media with numerous applications
Haidong Lu et al.
Advanced materials (Deerfield Beach, Fla.), 31(48), e1902890-e1902890 (2019-10-08)
Domain wall nanoelectronics is a rapidly evolving field, which explores the diverse electronic properties of the ferroelectric domain walls for application in low-dimensional electronic systems. One of the most prominent features of the ferroelectric domain walls is their electrical conductivity.
Maksim Kunitski et al.
Optics express, 21(6), 6826-6836 (2013-04-03)
We compare different tilted-pulse-front pumping schemes for single-cycle THz generation in LiNbO(3) crystals both theoretically and experimentally in terms of conversion efficiency. The conventional setup with a single lens as an imaging element has been found to be highly inefficient
Xi Yang et al.
Optics express, 21(4), 4783-4789 (2013-03-14)
Surface dark solitons in photovoltaic nonlinear media are reported. Taking advantage of diffusion and photovoltaic nonlinearities we demonstrated the surface dark solitons and their behaviors near surface theoretically and experimentally in LiNbO₃ crystal. It is very interesting that surface dark
Shoujun Zheng et al.
Optics express, 20(27), 29131-29136 (2012-12-25)
We developed a real-time imaging system to probe the light-assisted domain reversal process of Mg-doped LiNbO(3). An interesting phenomenon was observed where the domain appeared to reverse just after the laser was obscured. An exclusive electric field of about 350
Jian Wang et al.
Optics express, 21(3), 3756-3774 (2013-03-14)
We propose an approach to implementing wavelength- and time-selective optical switching, dropping and swapping based on the sum-frequency generation (SFG) or cascaded sum- and difference-frequency generation (cSFG/DFG) in a periodically poled lithium niobate (PPLN) waveguide. Analytical solutions are derived, showing
Lisa Miccio et al.
Lab on a chip, 12(21), 4449-4454 (2012-09-11)
We explore a novel approach for fabricating polymeric microfluidic-channelled dielectrophoretic (DEP) chips by direct laser projection through a holographic Spatial-Light-Modulator (SLM) onto photorefractive crystal substrates. As the first step, an all-optical mould-free approach was used to fabricate the PDMS microfluidic
Guang-hao Shao et al.
Optics express, 20(17), 19343-19348 (2012-10-06)
Optical parametric amplification (OPA) of arbitrarily polarized light is proposed in a multi-section periodically poled Lithium Niobate (PPLN). External electric field is applied on selected sections to induce the polarization rotation of involved lights, thus the quasi-phase matched optical parametric
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