OPHIR vega User Manual page 108

PD - Photodiode
P - P type volume absorber for short pulse lasers
PF - volume absorber for short pulses and high average powers
HE/HE1- volume absorber for high energy pulses
EX - Excimer type, volume absorber
PE - pyroelectric metallic or black absorber
BB - broadband surface absorber, high power density
LP1 - broadband surface absorber for highest power density
BF - very high damage threshold, long pulses
FS - Fused silica window close to detector for divergent beams
Note:
For more detailed and exact specifications, see the
latest Ophir Laser Measurement Instruments Catalog.
Absorber
Type
P
HE/HE1
BB
LP1
EX
PE, Metallic
PE, BB
PE-DIF
PE BB-DIF
Maximum Energy Densities for Various Absorbers
Pulsed Laser Damage Threshold for Thermal Sensors
Max Energy Density J/cm²
Pulse Length
10ns 1µs
10 10
3 5
0.3 0.5
0.09 0.5
0.8 0.9
0.2 0.5
0.5 0.5
1 2
3 3
Table 6.
(Single pulse).
Graph 4.
107
300µs
10
15
3
10
7
4
1
20
10