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254290
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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
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
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
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
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
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.
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
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
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
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
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
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
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.
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)
Jesper B Christensen et al.
Molecules (Basel, Switzerland), 26(3) (2021-01-29)
We report on the use of quartz-enhanced photoacoustic spectroscopy for continuous carbon-dioxide measurements in humid air over a period of six days. The presence of water molecules alters the relaxation rate of the target molecules and thus the amplitude of
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
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
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
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
Q Ripault et al.
Optics express, 21(6), 7202-7208 (2013-04-03)
In this work, we report the investigation of a planar waveguide in a 2D periodically-poled lithium niobate (PPLN). The waveguide is fabricated by helium (He(+)) implantation at 2 MeV and a fluence of 1.5 x 10(16) ions/cm(2). Second harmonic generation
Yan Sheng et al.
Optics express, 21(4), 4475-4480 (2013-03-14)
We propose and fabricate a LiNbO₃-based nonlinear photonic crystal with locally ordered ferroelectric domains. The nonlinearity modulation provides sets of uniformly distributed reciprocal lattice vectors, ensuring broadband high frequency conversion efficiency. Frequency tripling via cascading is demonstrated in the range
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
Gaby Nordendorf et al.
Physical chemistry chemical physics : PCCP, 22(3), 1774-1783 (2019-12-20)
Homologues of benzophenone silane, a covalently graftable, photochemically active surface functionalizing agent, are investigated as surface functionalization agents for both small particles and planar substrates. In these homologues, a chlorosilane functional group and a photochemically active benzophenone oxo moiety are
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
Serena Danti et al.
Biointerphases, 15(3), 031004-031004 (2020-05-22)
Sensorineural hearing loss (SNHL) affects the inner ear compartment and can be caused by different factors. Usually, the lack, death, or malfunction of sensory cells deputed to transduction of mechanic-into-electric signals leads to SNHL. To date, the therapeutic option for
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