TY  - JOUR
AU  - Pris, Andrew D.
AU  - Utturkar, Yogen
AU  - Surman, Cheryl
AU  - Morris, William G.
AU  - Vert, Alexey
AU  - Zalyubovskiy, Sergiy
AU  - Deng, Tao
AU  - Ghiradella, Helen T.
AU  - Potyrailo, Radislav A.
PY  - 2012
DA  - 2012//
TI  - Towards high-speed imaging of infrared photons with bio-inspired nanoarchitectures
T2  - Nat. Photon.
JO  - Nature Photonics
SP  - 195
EP  - 200
VL  - 6
IS  - 3
KW  - fromIPMRAS
AB  - Existing infrared detectors rely on complex microfabrication and thermal management methods. Here, we report an attractive platform of low-thermal-mass resonators inspired by the architectures of iridescent Morpho butterfly scales. In these resonators, the optical cavity is modulated by its thermal expansion and refractive index change, resulting in `wavelength conversion' of mid-wave infrared (3-8 µm) radiation into visible iridescence changes. By doping Morpho butterfly scales with single-walled carbon nanotubes, we achieved mid-wave infrared detection with 18-62 mK noise-equivalent temperature difference and 35-40 Hz heat-sink-free response speed. The nanoscale pitch and the extremely small thermal mass of individual `pixels' promise significant improvements over existing detectors. Computational analysis explains the origin of this thermal response and guides future conceptually new bio-inspired thermal imaging sensor designs.
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=785), last updated on Mon, 07 May 2012 21:14:47 -0500
ID  - Pris_etal2012
ER  -