TY - JOUR
T1 - Ultra-thin titanium nitride films for refractory spectral selectivity
AU - Roberts, Alexander
AU - Chirumamilla, Manohar
AU - Wang, Deyong
AU - An, Liqiong
AU - Pedersen, Kjeld
AU - Mortensen, N. Asger
AU - Bozhevolnyi, Sergey I.
PY - 2018
Y1 - 2018
N2 - We demonstrate a selectively emitting optical Fabry-Pérot resonator based on a few-nm-thin continuous metallic titanium nitride film, separated by a dielectric spacer, which exhibits excellent stability at 1070 K against chemical degradation, thin-film instabilities and melting point depression. The structure paves the way to the design and fabrication of refractory thermal emitters using the well-established processes known from the field of multilayer and rugate optical filters. We demonstrate that a few-nanometer thick films of titanium nitride can be stable under operation at temperatures exceeding 1070 K. This type of selective emitter provides a means towards near-infrared thermal emission that could potentially be tailored to the accuracy level known from rugate optical filters.
AB - We demonstrate a selectively emitting optical Fabry-Pérot resonator based on a few-nm-thin continuous metallic titanium nitride film, separated by a dielectric spacer, which exhibits excellent stability at 1070 K against chemical degradation, thin-film instabilities and melting point depression. The structure paves the way to the design and fabrication of refractory thermal emitters using the well-established processes known from the field of multilayer and rugate optical filters. We demonstrate that a few-nanometer thick films of titanium nitride can be stable under operation at temperatures exceeding 1070 K. This type of selective emitter provides a means towards near-infrared thermal emission that could potentially be tailored to the accuracy level known from rugate optical filters.
UR - http://www.scopus.com/inward/record.url?scp=85056106231&partnerID=8YFLogxK
U2 - 10.1364/OME.8.003717
DO - 10.1364/OME.8.003717
M3 - Journal article
SN - 2159-3930
VL - 8
SP - 3717
EP - 3728
JO - Optical Materials Express
JF - Optical Materials Express
IS - 12
ER -