Nov 13, 2023 #33 F farbe2 Well-known member Joined Oct 3, 2018 Messages 314 Points 63 Helium would be nice, keeps the die temperature a little lower than Argon. Not much, though.
Nov 13, 2023 #34 kecked 0 LPF Site Supporter Joined Jun 18, 2012 Messages 1,020 Points 83 Helium will leak out pretty fast. That is why I keep picking argon. Cheap and heavy
Nov 13, 2023 #35 BShanahan14rulz 0 Joined Dec 29, 2009 Messages 3,136 Points 63 red and infrared seem to more commonly use a doped GaAs semiconductor; perhaps As is less reactive with O than N is in GaN, as a reason for why there are some offerings for red and IR diodes in non-hermetically sealed packages.
red and infrared seem to more commonly use a doped GaAs semiconductor; perhaps As is less reactive with O than N is in GaN, as a reason for why there are some offerings for red and IR diodes in non-hermetically sealed packages.
Nov 13, 2023 #36 RedCowboy 0 LPF Site Supporter Joined Jul 10, 2015 Messages 9,987 Points 113 The red laser diode's substrate stack is not hygroscopic.