Search results for: Fuzeng Niu
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Here we have developed a novel large-field high-resolution two-photon digital scanned light-sheet microscopy (2P3A-DSLM) based on ultrafast axial scanning of illumination focal spot with a tunable acoustic gradient (TAG) index device. This new technique provides a sub-micron axial resolution with a large field of view in deep tissues. In vivo imaging with 2P3A-DSLM resolves functional maturation of...
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Tapered photonic crystal fibers with different transition profiles were designed and fabricated to control the visible dispersive wave generation process, and broadband visible supercontinuum (350–700 nm) was achieved.
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We optimized pre-chirp in an Nd-doped fiber amplifier to achieve high-quality femtosecond 920 nm pulses. The in vivo zebrafish imaging proves the laser amplifier an ideal source in two-photon microscopic imaging.
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We demonstrate a new two-photon light-sheet microscopy with three-color excitation, diffraction-limited thickness and tailorable illumination area, capable of multi-color multi-scale live imaging in one setup.
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We report the design and fabrication of tapered photonic crystal fibers for efficient fceo detection and ultra-flat visible super-continuum generation, which are used in an astro-comb system.
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Tapered photonic crystal fiber was designed and fabricated to support an octave spanning supercontinuum generation, directly pumped by an 500 MHz Yb:fiber oscillator. More than 40dB fceo signals were detected and locked.
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We demonstrated a near all-fiber femtosecond Yb:laser frequency comb incorporated with three different photonic crystal fibers. The comb removes most of free-space components so that it is more compact and stable.
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We report the green-enhanced (530 nm) super-continuum generation in a tapered photonic crystal fiber by 280 pJ pulses from a mode-locked Yb:fiber laser. This system offers a technique for efficient ƒceo beating signal detection.
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Electronics Letters > 2014 > 50 > 24 > 1859 - 1860
Green-light-enhanced super-continuum generation which covers the range from 500 to 1600 nm with a strong peak at 530 nm in a tapered photonic crystal fibre with pump pulse energy as low as 280 pJ from a mode-locked Yb:fibre laser is reported. By the f-to-2f self-reference technique, a 27 dB fceo signal was detected using the frequency pair at the Yb:laser wavelength (~1060 nm) and this green light...
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We demonstrate an Er:fiber ring laser operated at the fundamental repetition rate of 464MHz. The output power is 115mW under the pump power of 1.65W. The pulse width is 123fs.
