Abstract

An attempt at local modification of the optical properties in the interior of macroporous glass plates with porosity 0.58 cm3/cm3 and average channel size 50 – 70 nm by means of laser radiation weakly absorbed in the material is reported. The source of radiation is an ytterbium fiber laser with radiation wavelength λ = 1.07 μm, pulse duration τp ~ 100 nsec and pulse repetition frequency ν = 10 – 100 kHz. The temperature and the power of the radiation passing through of the irradiated region versus the duration of the exposure are presented.

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