Spontaneous Emission of a Two-Level Atom in Chiral Photonic Structures

Abstract:

The spontaneous emission spectrum of a two-level atom in a one-dimensional (1D) anisotropic photonic crystal with symmetry of double helix is investigated using Laplace transform. Properties of spectrum of the radiation modes are discussed in detail under different values of detuning of atomic resonant frequency from a band-edge. Since spontaneous emission is proportional to the density of states (DOS), it is suppressed within the reflection band, corresponding to vanishing of the DOS. However, it is enhanced at the band edge. Therefore, spontaneous emission spectrum of the system is influenced at the edge of the stop band rather than at its centre.

• Periodical: Applied Mechanics and Materials (Volumes 446-447)
• Pages: 373-377
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.446-447.373
• Online since: November 2013
• Authors: Nurgül Akıncı
• Keywords: Chiral Photonic Structure, Spontaneous Emission

References

[1] E. Yablonovitch: Phys. Rev. Lett. Vol. 58 (1987), p. (2059).

[2] S. John: Phys. Rev. Lett. Vol. 58 (1987), p.2486.

[3] D. Zhang, J. Li, C. Ding and X. Yang: Phys. Lett. A Vol. 376 (2012), p. (1978).

[4] C. Ding, J. Li and X. Yang: Opt. Com. Vol. 284 (2011) p.4550.

[5] Wei-Chun Chu and C.D. Lin: Phys. Rev. A Vol. 87 (2013) p.013415.

[6] K. Sasaki, S. Inoue, K. Nishio, H. Masuda, A. Otomo and S. Yokoyama: Opt. Mat. Vol. 32-1 (2010) p.543.

[7] N Vats and S. John: Phys. Rev. A Vol. 58 (1998) p.4168.

[8] M. Woldeyohannes, S. John: Phys. Rev. A Vol. 60-6 (1999) p.5046.

[9] X.Q. Jiang and X.D. Sun: Opt. Com. Vol. 282-5 (2009) p.922.

[10] S. Tanabete, Y. Nakagawa, T. Okamoto, M. Haraguchi, T. Isu and G. Shinomiya: Appl. Phys. A Vol. 112-3 (2013) p.605.

DOI: 10.1007/s00339-013-7774-4

[11] A. Christofi, N. Stefanou and S. Thanos: Microelectron. Eng. Vol. 90 (2010) p.152.

[12] V.I. Kopp, B. Fan, H.K.M. Vithana and A.Z. Genack: Opt. Lett. Vol. 23 (1998) p.1707.

[13] V.I. Kopp, Z. -Q. Zhang and A.Z. Genack: Phys. Rev. Lett. Vol. 86 (2001) p.1753.

[14] J. Gong, G. Li and Z. Tang: Nano Today Vol. 7 (2012) p.564.

[15] M.J. Hanus and A.T. Harris: Prog. Mater. Sci. Vol. 58 (2013) p.1056.

[16] M.S. Reddy, S. Kedia, R. Vijaya, A.K. Ray, S. Sinha, I.D. Rukhlenko and M. Premaratne: IEEE Photon. J. Vol. 5-1 (2013) p.4700409.

DOI: 10.1109/jphot.2013.2241754

[17] N. Bleistein and R.A. Handelsman: Asymptotic Expansions of Integrals (Dover Publications, New York (1975).