Chun-Lin Chang
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View article: Ultra-low lattice thermal conductivity driven high thermoelectric figure of merit in Sb/W co-doped GeTe
Ultra-low lattice thermal conductivity driven high thermoelectric figure of merit in Sb/W co-doped GeTe Open
Phonon scattering processes to κ lat of Ge 0.85 Sb 0.1 W 0.05 Te: Umklapp, boundary, point-defect, stacking faults, resonant scattering, nanoprecipitates & microstructural effects. (b) κ lat reduction (inset: ZT enhancement).
View article: Water-window soft x-ray high-harmonic generation up to the nitrogen K-edge driven by a kHz, 2.1<i>μ</i>m OPCPA source
Water-window soft x-ray high-harmonic generation up to the nitrogen K-edge driven by a kHz, 2.1<i>μ</i>m OPCPA source Open
We report the generation of coherent water-window soft x-ray harmonics in a neon-filled semiinfinite gas cell driven by a femtosecond multi-mJ mid-infrared optical parametric chirped-pulse amplification (OPCPA) system at a 1 kHz repetition…
View article: High-energy, kHz, picosecond hybrid Yb-doped chirped-pulse amplifier
High-energy, kHz, picosecond hybrid Yb-doped chirped-pulse amplifier Open
We report on a diode-pumped, hybrid Yb-doped chirped-pulse amplification (CPA) laser system with a compact pulse stretcher and compressor, consisting of Yb-doped fiber preamplifiers, a room-temperature Yb:KYW regenerative amplifier (RGA), …
View article: Three-octave-spanning supercontinuum generation and sub-two-cycle self-compression of mid-infrared filaments in dielectrics
Three-octave-spanning supercontinuum generation and sub-two-cycle self-compression of mid-infrared filaments in dielectrics Open
We experimentally and numerically investigate the spectral and temporal structure of mid-infrared (mid-IR) filaments in bulk dielectrics with normal and anomalous group velocity dispersion (GVD) pumped by a 2.1 μm optical parametric chirpe…
View article: Multi-mJ, kHz, ps deep-ultraviolet source
Multi-mJ, kHz, ps deep-ultraviolet source Open
We demonstrate a 0.56-GW, 1-kHz, 4.2-ps, 2.74-mJ deep-ultraviolet (DUV) laser at ∼257.7 nm with a beam propagation factor (M2) of ∼2.54 from a frequency-quadrupled cryogenic multi-stage Yb-doped chirped-pulse amplifier. The frequency quadr…