THz generation from water wedge excited by dual-color pulse

Li, Min; Li, Zhenyu; Nan, Junyi; Xia, Yu; He, Ming‐Yang; Wang, Feng; Lü, Wenhui; Yuan, Shuai; Zeng, Heping

doi:10.3788/col202018.073201

Cited by 4 publications

(3 citation statements)

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“…It was observed that from either water film or line, the optimal pulse duration for THz wave generation is in the order of subpicosecond 143,147,148,152 . This observation results from the dependence of plasma formation in water on the optical pulse duration, in which the electron density (corresponding to the pulse width) plays an important role 153 .…”

Section: Thz Intensitymentioning

confidence: 99%

“…It was demonstrated that the strongest THz wave generates when the diameter of the water line is in the range of 0.1-0.2 mm 145,152 . The preference of the diameter range was simulated by the model of electromagnetic wave propagation equations, and it was attributed to the changed pulse duration in water, which results in the enhanced THz signal 153 .…”

Section: Thz Intensitymentioning

confidence: 99%

“…Apart from the water, other liquids have been used as the target in the THz generation from liquid plasma, such as -pinene, p-xylene, and ethanol 147,153 . The spectra of THz waves generated from -pinene and water are shown in Fig.…”

Section: Spectrummentioning

confidence: 99%

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Terahertz generation from laser-induced plasma

Wang¹,

Zhang²

2022

OES

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Interest of the research in terahertz (THz) wave has been strongly motivated by its wide applications in the fields of physics, chemistry, biology, and engineering. Developing efficient and reliable THz source is of uttermost priority in these researches. Numerous attempts have been made in fulfilling the THz generation. Greatly benefited from the progress of the ultrafast pulses, the laser-induced-plasma is one of the auspicious tools to provide desirable THz waves, owing to its superiorities in high power threshold, intense THz signal, and ultrawide THz spectrum. This paper reviews the physics and progress of the THz generation from the laser-induced plasmas, which are produced by gas, liquid, and solid. The characteristics of the emitted THz waves are also included. There are many complicated physical processes involved in the interactions of laser-plasma, making various laser-plasma scenarios in the THz generations. In view of this, we will only focus on the THz generation classified by physical mechanisms. Finally, we discuss a perspective on the future of THz generation from the laser-induced plasma, as well as its involved challenges.

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Section: Thz Intensitymentioning

confidence: 99%

Section: Thz Intensitymentioning

confidence: 99%

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Terahertz generation from laser-induced plasma

Wang¹,

Zhang²

2022

OES

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Terahertz Radiation from Water Molecules Rotated by Femtosecond Laser Field

Pu,

Peng,

Shi

et al. 2024

J Infrared Milli Terahz Waves

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Progress, challenges, and opportunities of terahertz emission from liquids

et al. 2022

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Broadband terahertz (THz) wave emission from flowing liquid targets has been demonstrated under short optical pulse excitation. Observations have been reported by using liquid THz sources, including optimal angle of incidence, preference of subpicosecond pulse excitation, and strong sideway emission. Compared with solid targets, the fluidity of liquid allows each laser pulse to interact with a fresh area, which makes it possible to use a table-top laser with a high repetition rate for excitation. Liquids with a comparable material density to solids make them promising candidates for the study of high-density plasma and bright THz sources. In this paper, we review recent progress, challenges, and opportunities of THz emission from liquids. This topic may offer new possibilities in the exploration of THz liquid photonics and may play an indispensable role in the study of laser-liquid interaction.

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THz generation from water wedge excited by dual-color pulse

Cited by 4 publications

References 0 publications

Terahertz generation from laser-induced plasma

Terahertz generation from laser-induced plasma

Terahertz Radiation from Water Molecules Rotated by Femtosecond Laser Field

Progress, challenges, and opportunities of terahertz emission from liquids

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