Browsing by Author "Lin, S. -D."

Now showing 1 - 2 of 2

Probing the coexistence of semiclassical transport and localization in a two-dimensional electron gas using microwave radiation
(2013-03-01)
Hsu, Chang-Shun
;
Kannan, E. S.
;
Portal, J-C.
;
Liang, C. -T.
;
Huang, C. F.
We have performed magnetoresistance measurements on a GaAs/AlGaAs two-dimensional electron gas under microwave heating. Both the magneto-oscillations and magnetoresistance minima are used as electron thermometers to determine the electron effective temperature T-e. When there is no clear cyclotron gap, it is found that T-e determined from these two methods can be substantially different such that we can still distinguish localized electrons from the semiclassical conducting ones. The almost constant T-e obtained from the magnetoresistance minima reveals the survived equivalence between different Landau-band tails under insufficient localization. (C) 2012 Elsevier Ltd. All rights reserved.
Radiometric temperature measurement with Si and InGaAs single-photon avalanche photodiode
(2014-10-01)
Wu, J. -Y.
;
Lu, P. -K.
;
Hsiao, Y. -J.
;
Lin, S. -D.
;
電子工程學系及電子研究所
We experimentally demonstrate the use of single-photon avalanche photodiode (SPAD) for radiometric temperature measurement. The low dark count rate CMOS SPAD and a commercial InGaAs/InP SPAD can detect the thermal radiation from a blackbody down to the temperatures of 510 and 405 K, respectively. Our work shows that current SPADs are cost-effective thermal sensors for various applications. (C) 2014 Optical Society of America