Lasers and Lights for Treating Pigmented Lesions
Autor: | Jeffrey S. Dover, Emmy M. Graber |
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Rok vydání: | 2018 |
Předmět: | |
Zdroj: | Lasers in Dermatology and Medicine ISBN: 9783319761169 Lasers in Dermatology and Medicine ISBN: 9780857292803 |
DOI: | 10.1007/978-3-319-76118-3_6 |
Popis: | Pigmented lesions were initially treated with destructive non-selective lasers. Now pigment selective Q-switched lasers used. Pigmented skin lesions are exceedingly common. Selective destruction of pigmented lesions relies on the theory of selective photothermolysis. Melanin has a broad absorption spectrum with absorption steadily decreasing with increasing wavelength. Several Q-switched lasers fall within the melanin absorption spectrum. Their nanosecond pulse duration is effective since it is shorter than the thermal relaxation time of melanin. |
Databáze: | OpenAIRE |
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