Daping Luo
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View article: Rapid Three-Dimensional Flame Temperature Reconstruction Using Mid-Infrared Dual-Comb Spectroscopy
Rapid Three-Dimensional Flame Temperature Reconstruction Using Mid-Infrared Dual-Comb Spectroscopy Open
Accurate, rapid, and multidimensional temperature diagnostics are essential for understanding and controlling combustion processes under extreme conditions. Unlike conventional techniques that often require complex multi-detector configura…
View article: Directional white-light emission from sintered carbon dot titanium dioxide structures based on near-field confinement
Directional white-light emission from sintered carbon dot titanium dioxide structures based on near-field confinement Open
Directional light source not only helps to advance scientific progresses but also has great potentials in many application fields. However, it is still challenging to achieve the directional white light without optical elements. Here, we r…
View article: Triple-quantum dual-comb two-dimensional coherent spectroscopy resolves velocity-synchronized Dicke states in hot atomic vapors
Triple-quantum dual-comb two-dimensional coherent spectroscopy resolves velocity-synchronized Dicke states in hot atomic vapors Open
Two-dimensional coherent spectroscopy (2DCS) combined with dual-comb technology offers unprecedented resolution for probing many-body interactions and correlations in atomic vapors, yet its application to high-order multi-quantum transitio…
View article: Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser
Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser Open
A tunable high-power 60 MHz ultraviolet pulse laser directly produced by the extra-cavity fourth-order harmonic generation of a self-similar amplification infrared pulse laser is reported in this study. Utilizing the self-similar pulse evo…
View article: Massively-parallel absorption peak calibration with broadband dual-comb spectrometer enables ultrahigh-precision Doppler velocimetry
Massively-parallel absorption peak calibration with broadband dual-comb spectrometer enables ultrahigh-precision Doppler velocimetry Open
View article: High-efficiency mid-infrared CW-seeded optical parametric generation in PPLN waveguide
High-efficiency mid-infrared CW-seeded optical parametric generation in PPLN waveguide Open
Mid-infrared optical sources have been extensively used in a variety of applications, including gas sensing and metrology, by exploiting the fingerprint fundamental vibrational absorption bands of molecules in this spectral region. Paramet…
View article: High-SNR mid-infrared dual-comb spectroscopy using active phase control cooperating with CWs-dependent phase correction
High-SNR mid-infrared dual-comb spectroscopy using active phase control cooperating with CWs-dependent phase correction Open
Mid-infrared (MIR) dual-comb spectroscopy (DCS) is a highly effective method for molecular metrology of rovibrational transition spectra in a quick accurate manner. However, due to limited comb frequency instability, manipulating coherence…
View article: 980-Nm Femtosecond Pulse Generation from an All-Polarization-Maintaining Yb-Fiber Nalm Oscillator
980-Nm Femtosecond Pulse Generation from an All-Polarization-Maintaining Yb-Fiber Nalm Oscillator Open
View article: Compact mid-infrared dual-comb spectrometer over 3–4 μm via intra-pulse difference frequency generation in LiNbO<sub>3</sub> waveguides
Compact mid-infrared dual-comb spectrometer over 3–4 μm via intra-pulse difference frequency generation in LiNbO<sub>3</sub> waveguides Open
The mid-infrared optical frequency comb is a powerful tool for gas sensing. In this study, we demonstrate a simple mid-infrared dual-comb spectrometer covering 3–4 μm in LiNbO 3 waveguides. Based on a low-power fiber laser system, the mid-…
View article: 132 W 132 μJ Femtosecond Pulses from a Coherently Combined System of Two Rod-Type Photonic Crystal Fibers
132 W 132 μJ Femtosecond Pulses from a Coherently Combined System of Two Rod-Type Photonic Crystal Fibers Open
A coherent beam combination has the potential to revolutionize high-peak-power laser systems. However, achieving a high-average-power ultrashort pulse is difficult due to the accumulation of a nonlinear phase and gain narrowing. In this ar…
View article: Temperature-dependent determination of NO<sub>2</sub> dimerization reaction based on dual-comb spectroscopy
Temperature-dependent determination of NO<sub>2</sub> dimerization reaction based on dual-comb spectroscopy Open
Dimerization reactions play a critical role in various fields of research, including cell biology, biomedicine, and chemistry. In particular, the dimerization reaction of 2NO 2 ⇌N 2 O 4 has been extensively applied in pollution control and…
View article: Dual-comb optical activity spectroscopy for the analysis of vibrational optical activity induced by external magnetic field
Dual-comb optical activity spectroscopy for the analysis of vibrational optical activity induced by external magnetic field Open
Optical activity (OA) spectroscopy is a powerful tool to characterize molecular chirality, explore the stereo-specific structure and study the solution-state conformation of biomolecules, which is widely utilized in the fields of molecular…
View article: Tunable compact asynchronous optical sampling system using Er-doped fiber laser
Tunable compact asynchronous optical sampling system using Er-doped fiber laser Open
We report a compact, tunable, self-starting, all-fiber laser-based asynchronous optical sampling (ASOPS) system. Two Er-doped fiber oscillators were used as the pulsed-laser source, whose repetition rate could be set at 100 MHz with a tuni…
View article: Nonlinear Dynamics of Relative Intensity Noise Transfer at Fiber Amplification and Supercontinuum Generation
Nonlinear Dynamics of Relative Intensity Noise Transfer at Fiber Amplification and Supercontinuum Generation Open
View article: Gain-Dynamics-Dependent Noise Evolution in a Narrow-Linewidth Single-Frequency Yb-Fiber Amplifier Chain
Gain-Dynamics-Dependent Noise Evolution in a Narrow-Linewidth Single-Frequency Yb-Fiber Amplifier Chain Open
View article: 132-W 132-Μj Femtosecond Pulses from a Coherently Combined System of Two Rod-Type Photonic Crystal Fibers
132-W 132-Μj Femtosecond Pulses from a Coherently Combined System of Two Rod-Type Photonic Crystal Fibers Open
View article: Investigation of stable pulse mode-locking regimes in a NALM figure-9 Er-doped fiber laser
Investigation of stable pulse mode-locking regimes in a NALM figure-9 Er-doped fiber laser Open
We demonstrate three typical mode-locking processes of a nonlinear amplifying loop mirror (NALM) fiber laser via a general nonlinear Schrödinger equation-based (GNLSE) simulation model. First, the pulse evolutions in the NALM cavity were s…
View article: Dual-comb optical activity spectroscopy for the analysis of vibrational optical activity induced by external magnetic field
Dual-comb optical activity spectroscopy for the analysis of vibrational optical activity induced by external magnetic field Open
Optical activity (OA) includes the structural information of (bio) molecular and chemical systems, which is widely utilized in the fields of molecular chirality, pharmaceutics and analytical chemistry. Vibrational circular dichroism (VCD) …
View article: Passive Noise Suppression in Yb-Doped Fiber Amplifier Based on Nonlinear Amplifying Loop Mirror
Passive Noise Suppression in Yb-Doped Fiber Amplifier Based on Nonlinear Amplifying Loop Mirror Open
View article: 208-µs single-shot multi-molecular sensing with spectrum-encoded dual-comb spectroscopy
208-µs single-shot multi-molecular sensing with spectrum-encoded dual-comb spectroscopy Open
Dual-comb spectroscopy (DCS) is a powerful spectroscopic technique, which is developing for the detection of transient species in reaction kinetics on a short time scale. Conventionally, the simultaneous determination of multiple species i…
View article: Achieving Precise Spectral Analysis and Imaging Simultaneously with a Mode-Resolved Dual-Comb Interferometer
Achieving Precise Spectral Analysis and Imaging Simultaneously with a Mode-Resolved Dual-Comb Interferometer Open
In this paper, we report a scheme providing precise spectral analysis and surface imaging, simultaneously, based on a high-coherence dual-comb interferometer. With two tightly phase-locking frequency combs, we demonstrate a high-coherence …
View article: Self-referenced frequency comb from a polarization-maintaining Er: Fiber laser based nonlinear polarization evolution
Self-referenced frequency comb from a polarization-maintaining Er: Fiber laser based nonlinear polarization evolution Open
View article: Optimizing noise characteristics of mode-locked Yb-doped fiber laser using gain-induced RIN-transfer dynamics
Optimizing noise characteristics of mode-locked Yb-doped fiber laser using gain-induced RIN-transfer dynamics Open
Gain-parameter-dependent transfer functions and phase-noise performances in a mode-locked Yb-doped fiber laser are measured in this study. It is discovered that the corner frequency in the amplitude and phase domains is determined by the a…
View article: High-repetition-rate mid-IR femtosecond pulse synthesis from two mid-IR CW QCL-seeded OPAs
High-repetition-rate mid-IR femtosecond pulse synthesis from two mid-IR CW QCL-seeded OPAs Open
Coherent pulse synthesis in the mid-infrared (mid-IR) domain is of great interest to achieve broadband sources from parent pulses, motivated by the advantages of optical frequency properties for molecular spectroscopy and quantum dynamics.…
View article: Passive coherent dual-comb spectroscopy based on optical-optical modulation with free running lasers
Passive coherent dual-comb spectroscopy based on optical-optical modulation with free running lasers Open
Dual-comb spectroscopy is a powerful spectroscopic tool with ultrahigh-resolution, high-sensitivity properties, which opens up opportunities for the parallel detection of multi-species molecules. However, in its conventional form, highly s…
View article: 130 W, 180 fs ultrafast Yb-doped fiber frequency comb based on chirped-pulse fiber amplification
130 W, 180 fs ultrafast Yb-doped fiber frequency comb based on chirped-pulse fiber amplification Open
We report on a high-power fiber optical frequency comb consisting of a 250-MHz mode-locked fiber laser and a three-stage cascaded fiber chirped-pulse amplification system. After power scaling, the group velocity dispersion and third-order …
View article: Mid-infrared optical frequency comb in the 2.7–4.0 μm range via difference frequency generation from a compact laser system
Mid-infrared optical frequency comb in the 2.7–4.0 μm range via difference frequency generation from a compact laser system Open
We report on the generation of a mid-infrared (mid-IR) frequency comb with a maximum average output power of 250 mW and tunability in the 2.7–4.0 μm region. The approach is based on a single-stage difference frequency generation (DFG) star…
View article: Tunable optical frequency comb from a compact and robust Er:fiber laser
Tunable optical frequency comb from a compact and robust Er:fiber laser Open
We report on a compact and robust self-referenced optical frequency comb with a tunable repetition rate, generated by an all-polarization-maintaining (PM) mode-locked Er-doped fiber laser. The spacing between comb teeth can be tuned above …
View article: Ultrafast PM fiber ring laser mode-locked by nonlinear polarization evolution with short NPE section segments
Ultrafast PM fiber ring laser mode-locked by nonlinear polarization evolution with short NPE section segments Open
We demonstrate a nonlinear polarization evolution (NPE) mode-locked polarization maintaining (PM) Yb-doped fiber laser with short NPE section segments by setting proper splicing angle. With a theoretical analysis, we propose that an approp…
View article: Generation of 33 fs 935 W average power pulses from a third-order dispersion managed self-similar fiber amplifier
Generation of 33 fs 935 W average power pulses from a third-order dispersion managed self-similar fiber amplifier Open
We report on a high-power third-order dispersion managed amplification system that delivers 33-fs pulses of 93.5 W at a repetition rate of 55 MHz. A pair of grisms are used as the pre-chirper for optimizing the third order dispersion (TOD)…