[1] M. Ebrahim-Zadeh, I. T. Sorokina. Mid-Infrared Coherent Sources and Applications(2008).
[2] K. L. Vodopyanov. Laser-Based Mid-Infrared Sources and Applications(2020).
[8] Q. Chen, R. Ge, L. Zhang, F. Li, B. Zhang, Y. Dai, Y. Fei, X. Wang, X. Jia, Q. Zhao, X. Tu, L. Kang, J. Chen, P. Wu. Mid-infrared single photon detector with superconductor Mo80Si20 nanowire(2020).
[40] H. Takesue. Single-photon frequency down-conversion experiment. Phys. Rev. A, 82, 013833(2010).