Experimentally we compare the densification induced by electron beam irradiation of Ge-doped silica, produced by flame hydrolysis deposition with the densification of thermally produced SiO2. By comparing these results to the predictions made by elasticity theory, we find good agreement for the thermal SiO2 by considering a single region of electron beam damage. For the Ge-doped flame-hydrolysis-deposited silica, we need to include in the model a second, shallow region, which densifies to a greater extent. X-ray photoelectron spectroscopy measurements suggest that the thickness of this additional region is comparable to a layer that was found to be depleted of Ge.

1.
J. M.
Ruano
,
V.
Benoit
,
J. S.
Aitchison
, and
J. M.
Cooper
,
Anal. Chem.
72
,
1093
(
2000
).
Google Scholar
 
2.
S. M. R.
Spargaren
and
R. R. A.
Syms
,
J. Lightwave Technol.
18
,
555
(
2000
).
Google Scholar
 
3.
D.
Barbier
,
M.
Green
, and
J.
Madden
,
J. Lightwave Technol.
9
,
715
(
1991
).
Google Scholar
 
4.
R. A. A.
Syms
,
T. J.
Tate
, and
J. J.
Lewandowsky
,
J. Lightwave Technol.
12
,
2085
(
1994
).
Google Scholar
 
5.
R. A. A.
Syms
,
T. J.
Tate
, and
R.
Bellerby
,
J. Lightwave Technol.
13
,
1745
(
1995
).
Google Scholar
 
6.
W.
Primak
,
J. Appl. Phys.
43
,
2745
(
1972
).
Google Scholar
 
7.
B.
Poumellec
,
P.
Niay
,
M.
Douay
, and
J. F.
Bayon
,
J. Phys. D
29
,
1842
(
1996
).
Google Scholar
 
8.
R. R. A.
Syms
,
T. J.
Tate
, and
M. F.
Grant
,
Electron. Lett.
30
,
1480
(
1994
).
Google Scholar
 
9.
F.
Piao
,
W. G.
Oldham
, and
E. E.
Haller
,
J. Appl. Phys.
87
,
3287
(
2000
).
Google Scholar
 
10.
T. E.
Everhart
and
P. H.
Hoff
,
J. Appl. Phys.
42
,
5837
(
1971
).
Google Scholar
 
11.
R. D.
Mindlin
and
D. H.
Cheng
,
J. Appl. Phys.
21
,
931
(
1950
).
Google Scholar
 
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2001
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