Results 81 to 90 of about 14,112 (233)
Edge treatment for spurious mode suppression in thin-film lithium niobate resonators
Scientific ReportsThin-film lithium niobate is an attractive material for RF acoustic devices because of its high electromechanical coupling. However, due to the large coupling and the high anisotropy, thin-film lithium niobate resonators are prone to accidental ...
Arjun Aryal +4 more
doaj +1 more source
UV laser-assisted fabrication of ridge waveguides in lithium niobate crystals
, 2010 We present a UV laser-assisted method for the fabrication of ridge waveguides in lithium niobate. The UV laser irradiation step provides the refractive index change required for the vertical light confinement in the waveguide and also defines the ...
Sones, C.L. +5 more
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Hybrid thin-film lithium niobate-silicon nitride photonics
, 2022 Prather, Dennis W.Lithium niobate (LiNbO3) has been a widely popular electro-optic (EO) material since 1970. Large electro-optic coefficients and lower third-order nonlinearity compared to other III-V materials (e.g., InP, Si) make LiNbO3 an ideal ...
Ahmed, Abu Naim Rakib
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High‐Efficiency Graphene‐Silicon Slot‐Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands
Laser &Photonics Reviews, EarlyView.E/O modulators typically face a trade‐off between bandwidth and modulation efficiency. An integrated E/O modulator is presented that simultaneously achieves wideband, large bandwidth, and high modulation efficiency operation by embedding a partially overlapped double‐layer graphene on a compact silicon slot‐waveguide microring resonator.
Chao Luan +4 more
wiley +1 more source
Effect of heating rate on the crystal composition of ferroelectric lithium niobate crystallites
, 2007 A series of lithium niobate powders were synthesized by the combustion method at different heating rates. The effect of heating rate on the crystal composition of lithium niobate powders was investigated by powder X-ray diffraction measurements.
Liu, Meinan, Xue, Dongfeng
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Laser &Photonics Reviews, EarlyView.An etchless lithium niobate (LN) metasurface with a slanted periodic TiO2 grating enables efficient and narrowband second‐harmonic generation (SHG) thanks to the light confinement in the LN film granted by quasi‐bound‐state‐in‐the‐continuum (q‐BIC) modes.
Yaping Hou +10 more
wiley +1 more source
Optimisation of micro-structured waveguides in lithium niobate (z-cut) [PDF]
, 2014 We present an optimization procedure to improve the propagation properties of the depressed cladding, buried micro-structured waveguides formed in a z-cut lithium niobate (LN) crystal by high repetition rate femtosecond (fs) laser writing.
Karakuzu, H., Boscolo, S., Dubov, M.
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Small, EarlyView.Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong +9 more
wiley +1 more source
Lithium niobate piezo-optomechanical crystals
Optica, 2019 20 pages, including ...
Wentao Jiang +8 more
openaire +2 more sources
, 2012 This thesis investigates all-optical signal processing using cascaded quadratic nonlinearities in periodically poled lithium niobate (PPLN) waveguides for telecommunication applications.
Liu, Sheng
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