Spidell, M.
, conklin, D.
, Yung, C.
, Theocharous, E.
and , J.
(2021),
Spectral, spatial, and survivability evaluation of a binder-depleted, isotropic mat, nanotube spray coating, Applied Optics, [online], https://doi.org/10.1364/AO.58.000257, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=926125
(Accessed October 4, 2024)
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Spectral, spatial, and survivability evaluation of a binder-depleted, isotropic mat, nanotube spray coating
Published
Author(s)
, Davis conklin, , EVANGELOS THEOCHAROUS,
Abstract
We have improved the manufacturability of spectrally flat pyroelectric detectors for visible to mid-infrared wavelengths by demonstrating a spray-on, binder-depleted, carbon nanotube coating compatible with LiTaO3 sensors. This commercially available process, when compared against previous compatible coatings, shows the highest responsivity yet attained with under 1 % spectral non-uniformity from 300 nm to 12 μm and spectral responsivity uncertainty (k=2) under 0.4 %. The spatial non-uniformity of the assembled sensor is under 0.5 % over the central half (4 mm) of the absorber. As with previous developments employing multi-walled carbon nanotube non-directional (sprayed) coatings, the absorber surface is sufficiently robust to withstand cleaning by compressed air-blast and survived repeated vacuum cycling without notable effects on responsivity.Citation
Applied Optics
Volume
58
Issue
2
Pub Type
Journals
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Keywords
Detector materials, Nanomaterials, Far infrared or terahertz, metrology, Integrating spheres
Citation
Issues
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Created May 3, 2021