Multiwall carbon nanotube absorber on a thin-film lithium niobate pyroelectric detector

Multiwall carbon nanotube absorber on a thin-film lithium niobate pyroelectric detector

Multiwall carbon nanotubes (MWNTs) were applied in a bulk layer to a pyroelectric film to increase the detector sensitivity nearly fourfold without a substantial penalty to the low-frequency response (4-100 Hz). In addition, the spectral sensitivity over the wavelength range from 600 to 1800 nm was...

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Veröffentlicht in:Optics letters 2007-04, Vol.32 (7), p.772-774
Hauptverfasser: LEHMAN, John H, HURST, Katherine E, RADOJEVIC, Antonije M, DILLON, Anne C, OSGOOD, Richard M
Format: Artikel
Sprache:eng
Schlagworte:
Basic Sciences
CARBON
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
General equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
LITHIUM
MATERIALS SCIENCE
NANOTUBES
NIOBATES
Optical coatings
Optical elements, devices, and systems
Optics
OTHER INSTRUMENTATION
Physics
PYROELECTRIC DETECTORS
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
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Zusammenfassung:Multiwall carbon nanotubes (MWNTs) were applied in a bulk layer to a pyroelectric film to increase the detector sensitivity nearly fourfold without a substantial penalty to the low-frequency response (4-100 Hz). In addition, the spectral sensitivity over the wavelength range from 600 to 1800 nm was uniformly enhanced, with variations less than 1%. The results demonstrate the suitability of MWNTs as an efficient thermal absorber having low thermal mass.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.32.000772