- Is it a secret?
- No, it's a nitrogen LASER.
The Big Bang Theory Season 6, Episode 5
And this is a high-pulse LASER
with a BBO crystal.
The Big Bang Theory Season 12, Episode 22
Sheldon, I told you, I only have access
to the free-electron LASER at night.
The Big Bang Theory Season 2, Episode 5
Laser demonstration's looking
pretty good now, huh?
The Big Bang Theory Season 2, Episode 6
Laser tag. Seven thousand square feet
of rollicking fun...
Breaking Bad Season 3, Episode 11