<s>
It	O
works	O
by	O
ray	B-Algorithm
tracing	I-Algorithm
the	O
propagation	O
of	O
rays	B-Device
through	O
an	O
optical	O
system	O
.	O
</s>
<s>
Some	O
examples	O
of	O
Optica	O
being	O
used	O
in	O
simulations	O
and	O
illustrations	O
include	O
holography	B-Algorithm
,	O
x-ray	O
optics	B-Algorithm
,	O
spectrometers	O
,	O
Cerenkov	O
radiation	O
,	O
microwave	O
optics	B-Algorithm
,	O
nonlinear	O
optics	B-Algorithm
,	O
scattering	O
,	O
camera	O
design	O
,	O
extreme	B-Algorithm
ultraviolet	I-Algorithm
lithography	I-Algorithm
simulations	O
,	O
telescope	O
optics	B-Algorithm
,	O
laser	O
design	O
,	O
ultrashort	O
pulse	O
lasers	O
,	O
eye	O
models	O
,	O
solar	O
concentrators	O
and	O
Ring	O
Imaging	O
CHerenkov	O
(	O
RICH	O
)	O
particle	O
detectors	O
.	O
</s>
<s>
Wolfram	B-Application
Research	I-Application
first	O
sold	O
the	O
original	O
version	O
as	O
a	O
Mathematica	B-Language
application	O
.	O
</s>
