© 2002 J.Paul
Robinson, Purdue University BMS 631- Flow Cytometry lecture002.ppt
325 x 10-3
What about a
UV laser?
•
E= 6.63x10-34 joule-seconds x 3x108
= 6.12 x 10-19 J so
1 Joule at 325 nm = 1.63x1018 photons
What about a
He-Ne laser?
633 x 10-3
E= 6.63x10-34 joule-seconds x 3x108
= 3.14 x 10-19 J so 1 Joule at 633 nm = 3.18x1018 photons
3rd Ed. Shapiro p 77