Figure 5a shows two columns of broad asymmetric patterns in a diamond sample cut using only a single lens for a varying number of laser pulses. If the focal spot that created these patterns was rastered over an entire diamond it would result in a radiator with large surface variations rendering it unusable for GlueX.[[Image:goodfocus.png|center|thumb|300px|Zygo image of pulses made on diamond after passing through the three lens system.]] | Figure 5a shows two columns of broad asymmetric patterns in a diamond sample cut using only a single lens for a varying number of laser pulses. If the focal spot that created these patterns was rastered over an entire diamond it would result in a radiator with large surface variations rendering it unusable for GlueX.[[Image:goodfocus.png|center|thumb|300px|Zygo image of pulses made on diamond after passing through the three lens system.]] |