Stimulated Terahertz Emission from Excitons in Cu2O

Robert A. Kaindl; Rupert Huber; Ben A. Schmid; Y. Ron Shen; Daniel S. Chemla

doi:10.1364/UP.2006.MG7

15th International Conference on Ultrafast Phenomena
OSA Technical Digest Series (CD) (Optica Publishing Group, 2006),
paper MG7
•https://doi.org/10.1364/UP.2006.MG7

Stimulated Terahertz Emission from Excitons in Cu₂O

Robert A. Kaindl, Rupert Huber, Ben A. Schmid, Y. Ron Shen, and Daniel S. Chemla

International Conference on Ultrafast Phenomena 2006

Pacific Grove, California United States
31 July–4 August 2006
ISBN: 1-55752-810-1

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Solid-State Physics (MG)

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R. A. Kaindl, R. Huber, B. A. Schmid, Y. R. Shen, and D. S. Chemla, "Stimulated Terahertz Emission from Excitons in Cu2O," in 15th International Conference on Ultrafast Phenomena, OSA Technical Digest Series (CD) (Optica Publishing Group, 2006), paper MG7.

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Abstract

Using ultrashort THz pulses we observe stimulated emission between internal energy levels of excitons. Emission occurs in Cu₂O due to the 3p to 2s transition at 6.6 meV, with a cross section of 10⁻¹⁴ cm².

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