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Intense ultraviolet-visible-infrared full-spectrum laser.

ABSTRACT: A high-brightness ultrabroadband supercontinuum white laser is desirable for various fields of modern science. Here, we present an intense ultraviolet-visible-infrared full-spectrum femtosecond laser source (with 300-5000 nm 25 dB bandwidth) with 0.54 mJ per pulse. The laser is obtained by sending a 3.9 μm, 3.3 mJ mid-infrared pump pulse into a cascaded architecture of gas-filled hollow-core fiber, a bare lithium niobate crystal plate, and a specially designed chirped periodically poled lithium niobate crystal, under the synergic action of second and third order nonlinearities such as high harmonic generation and self-phase modulation. This full-spectrum femtosecond laser source can provide a revolutionary tool for optical spectroscopy and find potential applications in physics, chemistry, biology, material science, industrial processing, and environment monitoring.

SUBMITTER: Hong L

PROVIDER: S-EPMC10444876 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Intense ultraviolet-visible-infrared full-spectrum laser.

Hong Lihong L Liu Liqiang L Liu Yuanyuan Y Qian Junyu J Feng Renyu R Li Wenkai W Li Yanyan Y Peng Yujie Y Leng Yuxin Y Li Ruxin R Li Zhi-Yuan ZY

Light, science & applications 20230822 1

A high-brightness ultrabroadband supercontinuum white laser is desirable for various fields of modern science. Here, we present an intense ultraviolet-visible-infrared full-spectrum femtosecond laser source (with 300-5000 nm 25 dB bandwidth) with 0.54 mJ per pulse. The laser is obtained by sending a 3.9 μm, 3.3 mJ mid-infrared pump pulse into a cascaded architecture of gas-filled hollow-core fiber, a bare lithium niobate crystal plate, and a specially designed chirped periodically poled lithium ...[more]

PMID: 37607910

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