10.6 μm damage threshold measurements on sub-one-hundred-ps pyroelectric detectors

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Abstract
Sub-one-hundred-ps response time pyroelectric detectors are being developed at Los Alamos Scientific Laboratory (LASL) to be compatible with the 5-GHz oscilloscope direct-access mode of operation without damage. Strontium barium niobate, lithium tantalate lanthanum-doped lead zirconate, and lithium niobate are being evaluated for use in the edge and co-planar configurations. Devices designed at LASL are compared with commercially available detectors. Test results of a less than 15-ps risetime, 31-ps fall time 50/50 SBN pyroelectric detector are reported. Measurements to date of the damage threshold at 10.6 μm of the above materials in bulk, with various surface treatments, and in devices using 100-ps to 100-μs pulses are also reported.

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