2021
DOI: 10.1364/ao.413803
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Nickel-vanadium layered double hydroxide nanosheets as the saturable absorber for a passively Q-switched 2  µm solid-state laser

Abstract: The Nickel-vanadium (NiV)-layered double hydroxide (LDH) was fabricated into a novel saturable absorber (SA) by the liquid phase exfoliation method and was utilized as the laser modulator for the first time. We investigated a passive Q-switched (PQS) Tm:YAG ceramic laser at 2 μm with the NiV-LDH SA. Under an absorbed pump power of 7.2 W, the shortest pulse width of 398 ns was obtained with an average output power of 263 mW and a pulse repetition frequency (PRF) of 101.8 kHz, corresponding to a single pulse ene… Show more

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Cited by 12 publications
(4 citation statements)
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“…Much research has been done to study these hybrid materials' spectral, photochemical, and photophysical properties due to the stability and interlayer protection of the inorganic host structure [87][88][89][90]. At the same time, the chromophore species has an optical function such as color [91], thermochromicity [92], luminescence [93][94], formation of singlet oxygen [95], nonlinear optical properties, photo-oxidation [96], or UV absorption [97]. This study is important for developing layered materials for energy storage and conversion, photocatalysis, sunscreens, and even devices for sensing or photochemistry.…”
Section: ■ Sensitizersmentioning
confidence: 99%
“…Much research has been done to study these hybrid materials' spectral, photochemical, and photophysical properties due to the stability and interlayer protection of the inorganic host structure [87][88][89][90]. At the same time, the chromophore species has an optical function such as color [91], thermochromicity [92], luminescence [93][94], formation of singlet oxygen [95], nonlinear optical properties, photo-oxidation [96], or UV absorption [97]. This study is important for developing layered materials for energy storage and conversion, photocatalysis, sunscreens, and even devices for sensing or photochemistry.…”
Section: ■ Sensitizersmentioning
confidence: 99%
“…As a major way to generate ultrafast lasers, passively mode-locked laser has received extensive attention due to its compactness and miniaturization. Compared with semiconductor saturable absorber mirrors, 2D materials SAs have broadband absorption properties and simple fabrication process, so 2D materials as SAs have received extensive attention in recent years [6][7][8]. Compared with 1 m solid state laser, 1.3 m modelocked laser is more difficult to produce because of the smaller emission cross-section of the laser medium.…”
Section: Introductionmentioning
confidence: 99%
“…Compared with other 2D materials, LDHs exhibit more diverse electronic-photon interaction due to the natural interaction between anions and photons and the interactions between functionalized LDH nanolayers and photons. In 2021, our team used LDH as a saturable absorber in laser modulation for the first time [8]. Using Nickel-vanadium (NiV)-LDH as SA, a stable passively Q-switched laser operation at 2014.01 nm with a pulse width of 398 ns and a repetition rate of 101.8 kHz was realized [8].…”
Section: Introductionmentioning
confidence: 99%
“…In 2021, our team used LDH as a saturable absorber in laser modulation for the first time [8]. Using Nickel-vanadium (NiV)-LDH as SA, a stable passively Q-switched laser operation at 2014.01 nm with a pulse width of 398 ns and a repetition rate of 101.8 kHz was realized [8]. Recently, our group demonstrated a QML laser used NiV-LDH SA, operating at 2 µm, with a calculated pulse duration of 320 ps and repetition rate of 145 MHz [9].…”
Section: Introductionmentioning
confidence: 99%