• Chinese Optics Letters
  • Vol. 17, Issue 4, 041601 (2019)
Menglin Chen1, Zhijun Luo1, Yanan Liu1, and Zongsong Gan1、2、3、*
Author Affiliations
  • 1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
  • 2Key Laboratory of Information Storage Systems, Ministry of Education, Huazhong University of Science and Technology, Wuhan 430074, China
  • 3Shenzhen Research Institute of Huazhong University of Science and Technology, Shenzhen 518057, China
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    DOI: 10.3788/COL201917.041601 Cite this Article Set citation alerts
    Menglin Chen, Zhijun Luo, Yanan Liu, Zongsong Gan. Fractional density of states and the overall spontaneous emission control ability of a three-dimensional photonic crystal[J]. Chinese Optics Letters, 2019, 17(4): 041601 Copy Citation Text show less

    Abstract

    Fractional density of states (FDOS) hinders the accurate measuring of the overall spontaneous emission (SE) control ability of a three-dimensional (3D) photonic crystal (PC) with the current widely used SE decay lifetime measurement systems. Based on analyzing the FDOS property of a 3D PC from theory and simulation, the excitation focal spot position averaged FDOS with a distribution broadening parameter was proposed to accurately reflect the overall SE control ability of the 3D PC. Experimental work was done to confirm that our proposal is effective, which can contribute to comprehensively characterizing the SE control performance of photonic devices with quantified parameters.
    ρ(r,ω)=nk|Enk(r)|2δ(ωωnk)=1(2π)3n1BZδ(ωωnk)|Enk(r)|2d3k,(1)

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    Γ(r,ω)=ρ(r,ω)d2ω/(6ε0)=1/τ,(2)

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    Menglin Chen, Zhijun Luo, Yanan Liu, Zongsong Gan. Fractional density of states and the overall spontaneous emission control ability of a three-dimensional photonic crystal[J]. Chinese Optics Letters, 2019, 17(4): 041601
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