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Reply to: Can lasers really refrigerate CdS nanobelts?

Nature volume 570, pages E62–E64 (2019)Cite this article

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The Original Article was published on 26 June 2019

REPLYING TO Y. V. Morozov et al. Nature https://doi.org/10.1038/s41586-019-1269-1 (2019)

In the accompanying comment1, Morozov et al. questioned the validity of laser cooling of semiconductors in CdS nanobelts and other subsequent demonstrations by our group2,3,4. Their main argument is the large discrepancy between our experimental observations and their simulation, which is based on a COMSOL heat-transfer model5, concerning the time required to reach equilibrium. In the following, we explain that their arguments are not sufficient to support their conclusions.

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Fig. 1: Simulation of cooling response times.
Fig. 2: Photoluminescence spectra.

Data availability

All data are available from the corresponding author(s) upon reasonable request.

References

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Acknowledgements

We thank B. Huang from the Hong Kong University of Science and Technology for constructive discussions and help with the thermal analysis and modelling.

Author information

Authors and Affiliations

  1. State Key laboratory of Superlattices and Microsctructures, Institute of Semiconductors, Chinese Academy of Science, Beijing, China

    Jun Zhang

  2. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China

    Dehui Li

  3. Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore

    Qihua Xiong

Authors
  1. Jun Zhang
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  2. Dehui Li
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  3. Qihua Xiong
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Contributions

J.Z. and D.L. further analysed previous data and conducted the simulation. All authors prepared and wrote this reply.

Corresponding author

Correspondence to Qihua Xiong.

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Zhang, J., Li, D. & Xiong, Q. Reply to: Can lasers really refrigerate CdS nanobelts?. Nature 570, E62–E64 (2019). https://doi.org/10.1038/s41586-019-1270-8

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