Ruiyun He
Shandong University
18 Papers
41 Citations
Ruiyun He is an academic researcher from Shandong University. The author has contributed to research in topics: Laser & Femtosecond. The author has an hindex of 10, co-authored 18 publications.
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Papers
Polarization-dependent optical absorption of MoS₂ for refractive index sensing.
TL;DR: This work demonstrates the first observation of the polarization-dependent optical absorption of the MoS2 thin film, which is integrated onto an optical waveguide device, and explores a new application direction ofMoS2 nanomaterials for the construction of photonic circuits.
Three-dimensional dielectric crystalline waveguide beam splitters in mid-infrared band by direct femtosecond laser writing.
TL;DR: The fundamental mode guidance along both TE and TM polarizations has been obtained in the waveguide structures and the "multiscan" technique is utilized to shape cores with designed cross-sectional geometry in order to achieve guidance at mid-infrared wavelength of 4 μm.
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Femtosecond laser micromachining of lithium niobate depressed cladding waveguides
Ruiyun He,Qiang An,Yuechen Jia,Gabriel R. Castillo-Vega,Javier R. Vázquez de Aldana,Feng Chen +5 more
TL;DR: In this paper, the femtosecond laser micromachined depressed cladding waveguides in lithium niobate crystal have been constructed for two-dimensional guidance of light from the visible to the mid-infrared spectral regimes.
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Femtosecond laser direct writing of few-mode depressed-cladding waveguide lasers.
TL;DR: By using few-layer graphene as saturable absorber, passively Q-switched operation in fabricated waveguides is also achieved, and continuous-wave lasing with a threshold as low as 59 mW is obtained, depending on the optical feedback provided only by Fresnel reflections at the waveguide end faces.
35
Femtosecond-laser micromachined optical waveguides in Bi4Ge3O12 crystals.
TL;DR: The optical waveguides in Bi(4)Ge(3)O(12) (BGO) crystals in both depressed-cladding and dual-line configurations have been produced using femtosecond-laser micromachining, showing different performance of the fabricated structures.