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Guanghua Cheng

Researcher at Northwestern Polytechnical University

Publications -  132
Citations -  2014

Guanghua Cheng is an academic researcher from Northwestern Polytechnical University. The author has contributed to research in topics: Laser & Femtosecond. The author has an hindex of 19, co-authored 123 publications receiving 1531 citations. Previous affiliations of Guanghua Cheng include Chinese Academy of Sciences & Lyon College.

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Micro Fabry-Perot interferometers in silica fibers machined by femtosecond laser.

TL;DR: Investigation of the strain and temperature characteristics of the two MFPIs with an identical cavity length show that the strain sensitivity of the PCF- based MFPI is smaller than that of the SMF-based M FPI due to their different waveguide structures, while the twoMFPIs have close temperature sensitivities due to the similar host materials.
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Ultrafast laser photoinscription of polarization sensitive devices in bulk silica glass.

TL;DR: This work reports on the formation of waveguiding structures with remarkable polarization effects for infrared light in the photoinscription process using 800 nm femtosecond laser pulses accompanied by third harmonic generation and polarization dependent anisotropic scattering of UV photons.
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Dynamic ultrafast laser spatial tailoring for parallel micromachining of photonic devices in transparent materials.

TL;DR: A procedure of dynamic ultrafast laser beam spatial tailoring for parallel photoinscription of photonic functions by spatially modulating the wavefront of the beam with a time-evolutive periodical binary phase mask is reported.
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Coherence in ultrafast laser-induced periodic surface structures

TL;DR: In this paper, the formation of laser-induced periodic surface structures (LIPSSs) is intrinsically related to the coherence of the laser field, and the effect of randomizing spatial phase in generating finite domains of ripples.
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Facile synthesis and systematic investigations of a series of novel bent-shaped two-photon absorption chromophores based on pyrimidine.

TL;DR: bent-shaped quadrupolar chromophores combining peak TPA cross sections, broad TPA bands throughout the whole 700-900 nm range, and high fluorescence quantum yields could, thus, be obtained and are of particular interest for TPEF microscopy, as well as optical data storage in the visible and NIR regions.