![And this is a high-pulse laser
with a BBO crystal.
And this is a high-pulse laser
with a BBO crystal.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
And this is a high-pulse laser
with a BBO CRYSTAL.
The Big Bang Theory Season 12, Episode 22
![Crystal.
Crystal.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Crystal.
Breaking Bad Season 3, Episode 11
![For a fired schoolteacher
who cooks crystal meth,
For a fired schoolteacher
who cooks crystal meth,](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
For a fired schoolteacher
who cooks CRYSTAL meth,
Breaking Bad Season 4, Episode 4
![Oh, i-it's just this
dumb crystal wand
Oh, i-it's just this
dumb crystal wand](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Oh, i-it's just this
dumb CRYSTAL wand
The Big Bang Theory Season 12, Episode 2
![l, uh, went back to the crystal.
l, uh, went back to the crystal.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
l, uh, went back to the CRYSTAL.
Breaking Bad Season 4, Episode 7