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Whispering gallery modes in photoluminescence and Raman spectra of a spherical microcavity with CdTe quantum dots: anti-Stokes emission and interference effects

Abstract

We have studied the photoluminescence and Raman spectra of a system consisting of a polystyrene latex microsphere coated by CdTe colloidal quantum dots. The cavity-induced enhancement of the Raman scattering allows the observation of Raman spectra from only a monolayer of CdTe quantum dots. Periodic structure with very narrow peaks in the photoluminescence spectra of a single microsphere was detected both in the Stokes and anti-Stokes spectral regions, arising from the coupling between the emission of quantum dots and spherical cavity modes.

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References

  1. 1.

    Vahala KJ: Nature. 2003, 424: 839. COI number [1:CAS:528:DC%2BD3sXmt1ant7Y%3D] 10.1038/nature01939

  2. 2.

    Rakovich YP, Donegan JF, Gaponik N, Rogach AL: Appl. Phys. Lett.. 2003, 83: 2539. COI number [1:CAS:528:DC%2BD3sXns1ChtLw%3D] 10.1063/1.1615316

  3. 3.

    Spillane SM, Kippenberg TJ, Vahala KJ: Nature. 2002, 415: 621. COI number [1:CAS:528:DC%2BD38XhsVCjsLw%3D] 10.1038/415621a

  4. 4.

    Fan XD, Lonergan MC, Zhang YZ, Wang HL: Phys. Rev. B. 2001, 64: 115310. COI number [1:CAS:528:DC%2BD3MXmsFCjtL8%3D] 10.1103/PhysRevB.64.115310

  5. 5.

    Artemyev MV, Woggon U, Wannemacher R, Jaschinski H, Langbein W: Nano Lett.. 2001, 1: 309. COI number [1:CAS:528:DC%2BD3MXjvVWit70%3D] 10.1021/nl015545l

  6. 6.

    Klimov VI, Bawendi MG: MRS Bull.. 2001, 26: 998. COI number [1:CAS:528:DC%2BD38XkslWntQ%3D%3D]

  7. 7.

    Gaponik N, Talapin DV, Rogach AL, Hoppe K, Shevchenko EV, Kornowski A, Eychmuller A, Weller H: J. Phys. Chem. B. 2002, 106: 7177. COI number [1:CAS:528:DC%2BD38Xks1egsrg%3D] 10.1021/jp025541k

  8. 8.

    Susha AS, Caruso F, Rogach AL, Sukhorukov GB, Kornowski A, Möhwald H, Giersig M, Eychmüller A, Weller H: Coll. Surf. A. 2000, 163: 39. COI number [1:CAS:528:DC%2BD3cXnsFOl] 10.1016/S0927-7757(99)00428-8

  9. 9.

    van den Brink M, Pepers M, van Herk AM: J. Raman Spectrosc.. 2002, 33: 264. COI number [1:CAS:528:DC%2BD38XjtlWhu74%3D] 10.1002/jrs.834

  10. 10.

    Rakovich YP, Filonovich SA, Gomes MJM, Donegan JF, Talapin DV, Rogach AL, Eychmüller A: Phys. Stat. Sol. (b). 2002, 229: 449. COI number [1:CAS:528:DC%2BD38XptFakuw%3D%3D] 10.1002/1521-3951(200201)229:1<449::AID-PSSB449>3.0.CO;2-4

  11. 11.

    Rusakov KI, Gladyshchuk AA, Rakovich YP, Donegan JF, Filonovich SA, Gomes MJM, Talapin DV, Rogach AL, Eychmüller A: Opt. Spectr.. 2003, 94: 921.

  12. 12.

    Wang X, Yu WW, Zhang J, Aldana J, Peng X, Xiao M: Phys. Rev. B. 2003, 68: 125318. COI number [1:CAS:528:DC%2BD3sXotVOmsL8%3D] 10.1103/PhysRevB.68.125318

  13. 13.

    Chen W: Chem. Phys.. 2005, 122: 224708. COI number [1:CAS:528:DC%2BD2MXlsFGltrs%3D] 10.1063/1.1930828

  14. 14.

    Gorska M, Nazarewicz W: Phys. Stat. Sol. (b). 1974, 65: 193. COI number [1:CAS:528:DyaE2cXlt12gt74%3D]

  15. 15.

    Serpenguzel A, Arnold S, Griffel G, Lock JA: J. Opt. Soc. Am. B. 1997, 14: 790.

  16. 16.

    Rakovich YP, Yang L, McCabe EM, Donegan JF, Perova T, Moore A, Gaponik N, Rogach A: Sem. Sci. Techn.. 2003, 18: 914. COI number [1:CAS:528:DC%2BD3sXpslSjtbk%3D] 10.1088/0268-1242/18/11/302

  17. 17.

    Schiller S, Byer RL: Opt. Lett.. 1991, 16: 1138. COI number [1:CAS:528:DyaK3MXls12hsbY%3D] 10.1364/OL.16.001138

  18. 18.

    Chylek P, Zhan J: J. Opt. Soc. Am. A. 1989, 6: 1846. COI number [1:CAS:528:DyaK3cXhtVOntb8%3D] 10.1364/JOSAA.6.001846

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Acknowledgments

This work was supported by Science Foundation Ireland (SFI) under grant number 02/IN.1/I47. ALR acknowledges the Walton Award from the SFI.

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Correspondence to Yury P. Rakovich.

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Keywords

  • Microcavity
  • Nanocrystals
  • Quantum dots
  • Raman spectroscopy
  • Anti-Stokes emission