Hayat, Alex; Ginzburg, Pavel; Orenstein, Meir (2008-03-02). "Observation of two-photon emission from semiconductors". Nature Photonics. 2 (4). Springer Science and Business Media LLC: 238–241. doi:10.1038/nphoton.2008.28. ISSN1749-4885.
Hayat, Alex; Ginzburg, Pavel; Orenstein, Meir (2008-03-02). "Observation of two-photon emission from semiconductors". Nature Photonics. 2 (4). Springer Science and Business Media LLC: 238–241. doi:10.1038/nphoton.2008.28. ISSN1749-4885.