• Title/Summary/Keyword: Nd:YAG

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Postinflammatory Hyperpigmentation Secondary to Acupuncture and Cupping Successfully treated with 1,064-nm Picosecond-Domain Neodymium:Yttrium-Aluminum-Garnet Laser

  • Lee, Hae-Jin;Lee, Seung Hun;Yoon, So Young;Kim, Youn Jin;Kim, Young Koo
    • Medical Lasers
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    • v.8 no.1
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    • pp.32-34
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    • 2019

  • Postinflammatory hyperpigmentation (PIH) is a reactive hypermelanosis of the skin that occurs as a result of variable inflammatory processes, such as trauma, and many inflammatory conditions. Although a range of modalities of managing PIH have been reported, the treatment of PIH is challenging. In this report, a patient with PIH was treated using picosecond-domain Nd:YAG lasers. After three sessions of 1,064-nm picosecond-domain Nd:YAG laser treatment, the patient showed almost complete improvement with no remarkable side effects or recurrence over the duration of six months. Overall, 1,064-nm picosecond-domain Nd:YAG laser can be used effectively and safely for treating pigmented lesions in the dermis, particularly PIH, in Asian patients.

  • https://doi.org/10.25289/ML.2019.8.1.32 인용

Application of 532 nm YAG-Laser Annealing to Crystallization of Amorphous Si Thin Films Deposited on Glass Substrates

  • Lee, Jong-Won;So, Byung-Soo;Chung, Ha-Seung;Hwang, Jin-Ha
    • Korean Journal of Materials Research
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    • v.18 no.3
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    • pp.113-116
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    • 2008

  • A 532 nm Nd-YAG laser was applied to crystallize amorphous Si thin films in order to evaluate the applicability of a Nd-YAG laser to low-temperature polycrystalline Si technology. The irradiation of a green laser was controlled during the crystallization of amorphous Si thin films deposited onto glass substrates in a sophisticated process. Raman spectroscopy and UV-Visible spectrophotometry were employed to quantify the degree of crystallization in the Si thin films in terms of its optical transmission and vibrational characteristics. The effectiveness of the Nd-YAG laser is suggested as a feasible alternative that is capable of crystallizing the amorphous Si thin films.

  • https://doi.org/10.3740/MRSK.2008.18.3.113 인용 PDF KSCI

Remote Controlled PTC Thermistor by YAG Laser Irradiation (YAG 레이저를 이용한 PTC 서미스터의 원격작동)

  • 박용동
    • Journal of the Microelectronics and Packaging Society
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    • v.4 no.2
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    • pp.41-46
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    • 1997

  • 지향성이 좋고 에너지밀도가 높고 집광성이 뛰어난 Nd:YAG레이저를 이용해서 원거 리 레이저 조사를 통한 서미스터의 PTCR 특성을 관찰하여 원격 제어를 시도를하였다. 1064nm의 Nd:YAG레이저 광선을 BaTiO3 서미터 표면에 1m 거리에서 5mm2 빔 사이즈로 50~200mJ/pulse, 10Hz의 조건에서 조사하였을 때 서미스터의 전기저항변화는 약 103 정도 로 레이저 조사에 의하여 원격으로 PTCR 특성을 제어 할수 있었다.