Abstract
We discuss the observation of superfluorescence following the excitation of helium atoms with pulses from a free-electron laser. From semi-classical simulations and consideration of transition parameters, we predict that it should be possible to generate pulses of EUV superfluorescence using two-photon excitation.
References
Dicke, R.H.: Coherence in spontaneous radiation processes. Phys. Rev. 93(1), 99–110 (1954)
Gross, M., Haroche, S.: Superradiance: an essay on the theory of collective spontaneous emission. Phys. Rep. 93(5), 301–396 (1982)
Benedict, M.G. (eds.): Super-Radiance: Multiatomic Coherent Emission. CRC Press, Bristol; Philadelphia (1996)
Allen, L., Eberly, J.H.: Optical Resonance and Two-Level Atoms. Dover, New York (1987)
Cong, K., Zhang, Q., Wang, Y., et al.: Dicke superradiance in solids. J. Opt. Soc. Am. B 33(7), C80 (2016). arXiv: 1602.04374
Röhlsberger, R., Schlage, K., Sahoo, B., et al.: Collective lamb shift in single-photon superradiance. Science 328(5983), 1248–1251 (2010)
Nagasono, M., Harries, J.R., Iwayama, H., et al.: Observation of free-electron-laser-induced collective spontaneous emission (superfluorescence). Phys. Rev. Lett. 107(19), 193603 (2011)
Nakajima, K., Harries, J.R., Iwayama, H., et al.: Simultaneous measurements of super-radiance at multiple wavelengths from helium excited states: I. Experiment. J. Phys. Soc. Jpn. 84(5), 054301 (2015)
Harries, J.R., Iwayama, H., Nagasono, M., et al.: A streak camera study of superfluorescence at multiple wavelengths from helium atoms excited using free electron laser pulses. J. Phys. B: At. Mol. Opt. Phys. 48(10), 105002 (2015)
Ohae, C., Harries, J.R., Iwayama, H., et al.: Simultaneous measurements of superradiance at multiple wavelength from helium excited states: II. Analysis. J. Phys. Soc. Jpn. 85(3), 034301 (2016)
Brownell, J.H., Lu, X., Hartmann, S.R.: Yoked superfluorescence. Phys. Rev. Lett. 75(18), 3265–3268 (1995)
Yi, Z., Jha, P.K., Yuan, L., et al.: Observing the transition from yoked superfluorescence to superradiance. Opt. Commun. 351, 45–49 (2015)
Okada, J., Ikeda, K., Matsuoka, M.: Cooperative cascade emission. Opt. Commun. 26(2), 189–192 (1978)
Lvovsky, A.I., Hartmann, S.R., Moshary, F.: Superfluorescence-stimulated photon echoes. Phys. Rev. Lett. 89(26), 263602 (2002)
Pfeifer, T., Jiang, Y., Düsterer, S., et al.: Partial-coherence method to model experimental free-electron laser pulse statistics. Opt. Lett. 35(20), 3441–3443 (2010)
Harries, J.R., Ohae, C., Kuma, S., et al.: Single-atom response of helium atoms to pulses from an EUV free-electron laser: implications for the subsequent development of superfluorescence. Phys. Rev. A 94(6), 063416 (2016)
Marskar, R., Österberg, U.: Multilevel Maxwell-Bloch simulations in inhomogeneously broadened media. Opt. Express 19(18), 16784–16796 (2011)
Acknowledgements
This work was supported in part by the Research Foundation for Opto-Science and Technology, and a JSPS KAKENHI grant (number 15K04707). We are grateful to M. Nagasono, C. Ohae, Y. Miyamoto, K. Nakajima, T. Togashi and N. Sasao for helpful discussions.
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Harries, J.R., Kuma, S., Iwayama, H., Shigemasa, E. (2018). Superfluorescence/Superradiance in Helium Following Free-Electron Laser Excitation. In: Kawachi, T., Bulanov, S., Daido, H., Kato, Y. (eds) X-Ray Lasers 2016. ICXRL 2016. Springer Proceedings in Physics, vol 202. Springer, Cham. https://doi.org/10.1007/978-3-319-73025-7_16
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DOI: https://doi.org/10.1007/978-3-319-73025-7_16
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