TY - JOUR
T1 - Effect of refractive index-mismatch on laser microfabrication in silica glass
AU - Marcinkevičius, A.
AU - Mizeikis, V.
AU - Juodkazis, S.
AU - Matsuo, S.
AU - Misawa, H.
PY - 2003/2/1
Y1 - 2003/2/1
N2 - We studied the peculiarities of femtosecond laser microfabrication in silica glass with a refractive index that did not exactly match the value for which the focusing optics is designed. Spherical aberrations resulting from a small refractive index mismatch were found to increase the size and distort the shape of photodamaged regions, thus reducing the spatial resolution of the microfabrication. However, these undesirable effects can be minimized, providing that the focusing depth inside the glass is not too large, and the laser intensity is kept close to the light-induced damage threshold.
AB - We studied the peculiarities of femtosecond laser microfabrication in silica glass with a refractive index that did not exactly match the value for which the focusing optics is designed. Spherical aberrations resulting from a small refractive index mismatch were found to increase the size and distort the shape of photodamaged regions, thus reducing the spatial resolution of the microfabrication. However, these undesirable effects can be minimized, providing that the focusing depth inside the glass is not too large, and the laser intensity is kept close to the light-induced damage threshold.
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U2 - 10.1007/s00339-002-1447-z
DO - 10.1007/s00339-002-1447-z
M3 - Article
AN - SCOPUS:0037290915
SN - 0947-8396
VL - 76
SP - 257
EP - 260
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 2
ER -