In Legends of Tomorrow episode 2x04 "Compromised", Martin Stein tells his younger self that despite all the awards he's won, his wife is the most important part of his life. His younger self briefly asks "Did we win the sixth Carlin?". Although it's difficult to hear, the closed captioning clarifies the spelling:
However, I can't find an award by that name that would be suitable for Dr. Stein's background. There is for instance the Dorothy Baethke-Eleanor J. Carlin Award for Excellence in Academic Teaching, but that is for a physical therapist, rather than a physicist.
Which award was he referring to (and is it possible the closed captioning got it wrong?).