Our latest work on two-photon-excited fluorescence of single quantum dots is now published in ACS Photonics! In a nutshell, we showed more than 10000-fold enhanced fluorescence of a single semiconductor quantum dot using a two-photon-excitation scheme. The high enhancement of this nonlinear effect arises mainly from the local field amplification… Continue reading
We are proud of our research! Our latest publication on nanothermometry is in the top-10 most-read NanoLetters papers of the month!
(left) Anti-Stokes emission spectra of an individual gold nanorod excited in resonance with different laser powers. The lines are fits using our model. (right) Extracted temperature of the nanorod for several excitation powers.
Briefly, in this paper we present a method to extract the absolute temperature of an individual gold nanorod by measuring the anti-Stokes emission spectra. We present a simple model to interpret the data and we show that we can achieve 4K accuracy in the temperature determination with only 180s integration time.
Congratulations to the authors!
We are proud of our recent publication on single-molecule electrochemistry using enhanced fluorescence as readout. We used gold nanorods as nanoatennas to reveal single-molecules of a redox sensitive dye, Methylene Blue, and studied the electrochemical properties of this molecule one by one. Leiden University’s Press release can be found here and… Continue reading