We report on progress in uv micro-machining with high repetition rate (4.5 kHz) frequency-doubled copper vapour lasers (CVLs). Characteristics of drilling 2 to 300 micron diameter holes in several materials, including polyethylene and polyimide, will be discussed.

1.
Coutts
,
D.W.
 and
Piper
,
J. A.
, “
One Watt average power by second harmonic and sum frequency generation from a single medium scale copper vapour laser
,”
IEEE J. Quantum Electronics
,
QE28
, pp
1761
–
1764
1992
.
https://doi.org/10.1109/3.142571
Google Scholar
Crossref
Search ADS
 
2.
Coutts
,
D.W.
,
Brown
,
D.J.W.
 and
Piper
,
J.A.
, “
Non-linear frequency conversion of copper vapour laser fundamental and second harmonic outputs
”, in
Tech Dig, CLEO, Opt. Soc. Amer.
1993
, paper CThN7.
Google Scholar
 
3.
Withford
M.J.
,
Brown
D.J.W.
,
Coutts
D.W.
 and
Piper
J. A.
, “
Increased efficiency of high beam quality extraction from a copper vapour laser with H2/Ne mixtures
,” in
Tech Dig, CLEO, Opt. Soc. Amer.
1994
, paper CFD3.
Google Scholar
 
4.
Lambda Highlights no 3, “
Technical aspects of ablative photo-decomposition
”.
5.
Christensen
,
C.P.
, “
Laser processing works on a micro scale
”,
Industrial Laser Review
, June
1994
, pp
9
–
12
.
Google Scholar
 
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© 1994 Laser Institute of America.
1994
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