2020
DOI: 10.1088/1742-6596/1697/1/012254
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Powerful ultraviolet laser pulse impact on polished metals and semiconductors

Abstract: Laser treatment for samples of copper, its alloys and gold was carried out with a UV pulse of nanosecond duration. After irradiation at subthreshold values of the energy density (E ∼ 0.2 - 0.8 J/cm2) the noticeable changes in the surface layer were revealed. These are traces of thermoplastic deformation resulting from laser exposure. They appear as uneven rise of the irradiated sample surface area up to 1 μm. The effect is cumulative, because the height of the uplifts increases with increasing number of impact… Show more

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Cited by 8 publications
(9 citation statements)
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“…Для усреднения показания Nova II делились на количество импульсов. Методика эксперимента и описание установки подробно изложены в работах [8][9][10].…”
Section: исследованные материалы и методика экспериментаunclassified
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“…Для усреднения показания Nova II делились на количество импульсов. Методика эксперимента и описание установки подробно изложены в работах [8][9][10].…”
Section: исследованные материалы и методика экспериментаunclassified
“…В описываемых экспериментах использовалась частота повторения f = 10 Hz. Поверхность образца за время между импульсами полностью остывала [8][9][10].…”
Section: исследованные материалы и методика экспериментаunclassified
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“…A nanosecond laser is assumed to be used to provide a high-accuracy processing and low mechanical stresses in the material under treatment, combined with reliability and stability. Surface scanning by a laser beam with a sufficiently high pulse frequency will allow to process extended surfaces with high spatial resolution [38]. Shortening the pulse duration is known to be accompanied by a reduction of the heat affected zone and an increase in the processing accuracy [39].…”
Section: Introductionmentioning
confidence: 99%