Recent progress on laser absorption spectroscopy for determination of gaseous chemical species

Fu, Bo; Zhang, Chenghong; Lyu, Wenhao; Sun, Jingxuan; Shang, Ce; Cheng, Yuan; Xu, Lijun

doi:10.1080/05704928.2020.1857258

Cited by 55 publications

(26 citation statements)

References 171 publications

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“…However, other wavelengths such as 1.3 and 2.1 µm have not gained more attention, which have been used in telecommunication and spectroscopy. [212][213][214] Moreover, MXene-based ultrafast lasers tend to produce Q-switched pulses at 3-µm band with low SNR (<50 dB) and wide pulse width (µs or ns). Therefore, it is necessary for us to achieve stable ultrafast pulses enabled by MXene-based SAs in other wavelengths.…”

Section: -µM Bandmentioning

confidence: 99%

MXenes: Synthesis, Optical Properties, and Applications in Ultrafast Photonics

Sun

Wang

et al. 2021

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Recently, 2D materials are in great demand for various applications such as optical devices, supercapacitors, sensors, and biomedicine. MXenes as a kind of novel 2D material have attracted considerable research interest due to their outstanding mechanical, thermal, electrical, and optical properties. Especially, the excellent nonlinear optical response enables them to be potential candidates for the applications in ultrafast photonics. Here, a review of MXenes synthesis, optical properties, and applications in ultrafast lasers is presented. First, aqueous acid etching and chemical vapor deposition methods for preparing MXenes are introduced, in which the storage stability and challenges of the existing synthesis techniques are also discussed. Then, the optical properties of MXenes are discussed specifically, including plasmonic properties, optical detection, photothermal effects, and ultrafast dynamics. Furthermore, the typical ultrafast pulsed lasers enabled by MXene-based saturable absorbers operated at different wavelength regions are summarized. Finally, a summary and outlook on the development of MXenes is presented in the perspectives section.

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Section: -µM Bandmentioning

confidence: 99%

MXenes: Synthesis, Optical Properties, and Applications in Ultrafast Photonics

Sun

Wang

et al. 2021

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148

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“…Ultrafast lasers are the key component of ultrafast photonics, which have come into practice in various fields, such as micromachining [ 175 ], communication [ 176 ], medical procedures [ 177 , 178 ], gas detection [ 179 ], and remote sensing [ 180 ]. With the advantages of stability, compactness, and easy implementation, mode-locking and Q-switching are two notable techniques to achieve ultrafast pulsed lasers, where SAs perform crucial roles in many types of ultrafast lasers, such as fiber, solid-state, and waveguide lasers [ 17 , 18 , 49 , 181 , 182 , 183 ].…”

Section: Applications Of 2d Materials In Ultrafast Lasersmentioning

confidence: 99%

Recent Progress of Two-Dimensional Materials for Ultrafast Photonics

et al. 2021

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Owing to their extraordinary physical and chemical properties, two-dimensional (2D) materials have aroused extensive attention and have been widely used in photonic and optoelectronic devices, catalytic reactions, and biomedicine. In particular, 2D materials possess a unique bandgap structure and nonlinear optical properties, which can be used as saturable absorbers in ultrafast lasers. Here, we mainly review the top-down and bottom-up methods for preparing 2D materials, such as graphene, topological insulators, transition metal dichalcogenides, black phosphorus, and MXenes. Then, we focus on the ultrafast applications of 2D materials at the typical operating wavelengths of 1, 1.5, 2, and 3 μm. The key parameters and output performance of ultrafast pulsed lasers based on 2D materials are discussed. Furthermore, an outlook regarding the fabrication methods and the development of 2D materials in ultrafast photonics is also presented.

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“…There are two potential trends for promoting the development of laser sources in PAI, including low-cost light emitting diodes and high-performance laser sources (135)(136)(137)(138)(139). Recently, optical frequency combs are combined with ultrasound sensors to enable precise photoacoustic spectroscopy (140)(141)(142)(143)(144). Optical frequency combs are specific light sources that provide coherent broad spectra featured with evenly spaced optical frequencies (145).…”

Section: Perspectivesmentioning

confidence: 99%