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. Author manuscript; available in PMC: 2013 Jun 12.
Published in final edited form as: Opt Lett. 2009 Aug 15;34(16):2477–2479. doi: 10.1364/ol.34.002477

Fig. 1.

Fig. 1

(a) Absorption spectrum of (oxy-)hemoglobin [3]. (b) Schematic of absorption and emission spectrum of CdTe quantum dots (QTracker 705, Invitrogen) [4]. The gray-shaded area in (b) is used by HEFT for fluorescence stimulation.