Ultrahigh‐Response of WSe 2 Homojunction Photodetectors Induced by Ferroelectric Domains in Periodically Poled Lithium Niobate
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202519097
Abstract: This paper proposes a high‐performance photodetector based on a ferroelectric‐modulated homojunction coupled by periodically poled lithium niobate (PPLN) and WSe 2 . Through the synergistic effect of interface engineering and a periodic ferroelectric substrate, non‐volatile… read more here.
Keywords: poled lithium; homojunction; performance; wse ... See more keywords
Characteristics of optical parametric oscillator synchronously pumped by Yb:KGW laser and based on periodically poled potassium titanyl phosphate crystal
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2017.11.057
Abstract: Abstract We present experimental data and numerical simulation results obtained during investigation of synchronously pumped optical parametric oscillator (SPOPO) pumped by femtosecond Yb:KGW laser (central wavelength at 1033 nm). The nonlinear medium for parametric generation was… read more here.
Keywords: optical parametric; periodically poled; synchronously pumped; poled potassium ... See more keywords
Tunable violet radiation in a quasi-phase-matched periodically poled stoichiometric lithium tantalate waveguide by direct femtosecond laser writing
Sign Up to like & getrecommendations! Published in 2020 at "Results in physics"
DOI: 10.1016/j.rinp.2020.103373
Abstract: Abstract We report on violet-light generation using the femtosecond-laser written waveguides in periodically poled MgO:LiTaO3 crystal under conditions of third-order quasi-phase matching. Ten parallel depressed cladding waveguides are successfully fabricated with different grating periods in… read more here.
Keywords: periodically poled; violet; femtosecond laser; tunable violet ... See more keywords
Generation of an ultra-long sub-diffracted second-harmonic optical needle from a periodically poled LiNbO3 crystal
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/1.5142522
Abstract: We experimentally demonstrate the use of a periodically poled LiNbO3 (PPLN) crystal to produce an ultra-long sub-diffraction optical needle via second-harmonic generation. When we input a radially polarized fundamental wave from a femtosecond laser, a… read more here.
Keywords: periodically poled; optical needle; ultra long; harmonic optical ... See more keywords
Optimizing the efficiency of a periodically poled LNOI waveguide using in situ monitoring of the ferroelectric domains
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/1.5142750
Abstract: Lithium niobate on insulator (LNOI) is a unique platform for integrated photonic applications and especially for high-efficiency nonlinear frequency converters because of the strong optical field confinement. In this work, we fabricated a 6-mm-long periodically… read more here.
Keywords: periodically poled; poled lnoi; efficiency periodically; optimizing efficiency ... See more keywords
Cryogenically cooled periodically poled lithium niobate wafer stacks for multi-cycle terahertz pulses
Sign Up to like & getrecommendations! Published in 2024 at "Applied Physics Letters"
DOI: 10.1063/5.0230877
Abstract: We report on the generation of high-power narrow-bandwidth terahertz (THz) pulses by cryogenic cooling of hand-made periodically poled lithium niobate (PPLN) wafer stacks. As a proof-of-concept, we cool stacks with up to 48 wafers down… read more here.
Keywords: periodically poled; terahertz; wafer; poled lithium ... See more keywords
Simultaneous second and third harmonics generation in periodically poled lithium niobate: Coupling and competition
Sign Up to like & getrecommendations! Published in 2025 at "Chinese Physics B"
DOI: 10.1088/1674-1056/add24a
Abstract: Conventional approaches for obtaining the second and third harmonics typically employ several nonlinear crystals to generate them, which is restricted in application due to the complexity of the optical path and the bulkiness of the… read more here.
Keywords: generation; second third; third harmonics; poled lithium ... See more keywords
An Optical Parametric Oscillator in the Mid-IR Range Based on a Fan-out Periodically Poled Structure of Lithium Niobate with a Narrow-Band Seeding Laser
Sign Up to like & getrecommendations! Published in 2021 at "Instruments and Experimental Techniques"
DOI: 10.1134/s0020441221020020
Abstract: The results of experimental studies of the effect of narrow-band seeding radiation of a gas laser on the spectral width of the oscillation line of an optical parametric oscillator (OPO), which is based on a… read more here.
Keywords: based fan; periodically poled; band seeding; optical parametric ... See more keywords
Phase-shifted Solc-type filter based on thin periodically poled lithium niobate in a reflective geometry.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.012016
Abstract: Configurable narrow bandwidth filters are indispensable components in optical communication networks. Here, we present an easily-integrated compact tunable filtering based on polarization-coupling process in a thin periodically poled lithium niobate (PPLN) in a reflective geometry… read more here.
Keywords: periodically poled; reflective geometry; lithium niobate; thin periodically ... See more keywords
Periodically poled ridge waveguides in KTP for second harmonic generation in the UV regime.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.028827
Abstract: Waveguide circuits play a key role in modern integrated optics and provide an appealing approach to scalability in quantum optics. We report on periodically poled ridge waveguides in z-cut potassium titanyl phosphate (KTiOPO4 or KTP),… read more here.
Keywords: periodically poled; poled ridge; ridge waveguides; optics ... See more keywords
Conversion efficiency improvement of terahertz wave generation laterally emitted by a ridge-type periodically poled lithium niobate.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.450876
Abstract: We demonstrate terahertz (THz) wave generation by wavelength conversion in a ridge-type/bulk periodically poled lithium niobate (RT-/bulk-PPLN) under almost the same experimental conditions. When using the RT-PPLN, the ridge structure works as a slab waveguide… read more here.
Keywords: ridge type; conversion; ridge; poled lithium ... See more keywords