Chinese Optics Letters, Volume. 21, Issue 5, 053601(2023)
Temperature-dependent optical properties of low-loss plasmonic SrMoO3 thin films
Figures & Tables(7)
Fig. 1. (a) XRD patterns of the SMO films before and after heating to 800°C. The inset shows the subtle shift in (002) peak position. (b) ω rocking curve for the (002) peak of the unheated film. (c) Surface and cross-sectional morphology of the SMO film heated to 800°C.
Fig. 2. Electrical properties of the SMO films on LAO substrates at different temperatures.
Fig. 3. Experimental and fitted values of (a) the real and (b) the imaginary parts of the dielectric function of the SMO film at 700°C.
Fig. 4. (a) Real and (b) imaginary parts of the dielectric function of the SMO films at different temperatures. The purple horizontal dashed line in (a) represents the ENZ locations. The legend in (a) shows the temperature color coding for both the plots.
Fig. 5. (a) Temperature-dependent propagation lengths of the SPPs and (b) quality factors of the LSPR calculated using the dielectric functions of the SMO films. The legend in (a) shows the temperature color coding for both the plots.
Table 1. Comparison of
L SPP in Au[15], TiN, and SMO at Different Temperatures and at 820 nm WavelengthView tableView in ArticleTable 1. Comparison of
L SPP in Au[15], TiN, and SMO at Different Temperatures and at 820 nm WavelengthSample LSPP (µm) (at 23°C) LSPP (µm) (at 400°C–500°C) LSPP (µm) (at 600°C) LSPP (µm) (at 800°C) LSPP Change at the Largest Temperature (%) 200 nm Au 72.94 38.41 (500°C) 47.3 30 nm Au 40.49 11.35 (450°C) 72.0 200 nm TiN[ 29 ]5.56 4.44 (440°C) 41.9 30 nm TiN[ 32 ]5.14 4.25 (400°C) 3.47 3.18 43.4 200 nm SMO 20.25 3.01 (400°C) 1.72 0.73 96.4
Table 2. Comparison of
Q LSPR in Au[15], TiN[32], and SMO at Different Temperatures and at 820 nm WavelengthView tableView in ArticleTable 2. Comparison of
Q LSPR in Au[15], TiN[32], and SMO at Different Temperatures and at 820 nm WavelengthSample QLSPR (at 23°C) QLSPR (at 400°C–500°C) QLSPR (at 600°C) QLSPR (at 800°C) QLSPR Change at the Largest Temperature (%) 200 nm Au 22.93 11.93 (500°C) 48.0 30 nm Au 13.05 3.50 (450°C) 73.2 200 nm TiN 2.9 1.91 (400°C) 1.52 65.2 30 nm TiN 2.78 2.22 (400°C) 1.78 48.2 200 nm SMO 4.81 1.72 (400°C) 1.31 0.90 81.3
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Qian Peng, Yadong Qiao, Yang Liu, "Temperature-dependent optical properties of low-loss plasmonic SrMoO3 thin films," Chin. Opt. Lett. 21, 053601 (2023)
Paper Information
Category: Nanophotonics, Metamaterials, and Plasmonics
Received: Oct. 6, 2022
Accepted: Mar. 7, 2023
Published Online: May. 10, 2023
The Author Email: Yang Liu (yliu@hbeu.edu.cn)
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