High-frequency sub-wavelength IR thermal source

Floria Ottonello Briano; Pauline Renoux; Fredrik Forsberg; Hans Sohlström; Snorri Ingvarsson; Göran Stemme; Kristinn B. Gylfason

doi:10.1117/12.2052457

1 May 2014 High-frequency sub-wavelength IR thermal source

Floria Ottonello Briano, Pauline Renoux, Fredrik Forsberg, Hans Sohlström, Snorri Ingvarsson, Göran Stemme, Kristinn B. Gylfason

Author Affiliations +

Proceedings Volume 9133, Silicon Photonics and Photonic Integrated Circuits IV; 91331D (2014) https://doi.org/10.1117/12.2052457
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

We present a method to characterize the temperature dynamics of miniaturized thermal IR sources. The method circumvents the limitations of current IR photodetectors, by relying only on an electrical measurement rather than on optical detection. Thus, it enables the characterization of the light emission of IR sources over their full operation frequency range. Moreover, we develop a model of thermal IR sources allowing simulations of their thermal and electrical behavior. By combining measurements and modeling, we achieve a comprehensive characterization of a Pt nanowire IR source: the reference resistance R₀ = 17.7Ω, the TCR α = 2.0 × 10^-3 K^-1, the thermal mass C = 2.7 × 10^-14 J/K, and the thermal conductance G = 1.3 × 10^-6 W/K. The thermal time constant could not be measured, because of the frequency limitation of our setup. However, the operation of the source has been tested and proved to function up to 1 MHz, indicating that the thermal time constant of the source is smaller than 1 μs.

Citation Download Citation

Floria Ottonello Briano, Pauline Renoux, Fredrik Forsberg, Hans Sohlström, Snorri Ingvarsson, Göran Stemme, and Kristinn B. Gylfason "High-frequency sub-wavelength IR thermal source", Proc. SPIE 9133, Silicon Photonics and Photonic Integrated Circuits IV, 91331D (1 May 2014); https://doi.org/10.1117/12.2052457

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available