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Wavelength dependence of second-harmonic generation at the copper surface |
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| Authors: | G Petrocelli S Martellucci R Francini |
| Institution: | (1) Dipartimento di Ingegneria Meccanica, 2° Universita' di Roma  Tor Vergat , via Orazio Raimondo, I-00173 Rome, Italy;(2) Dipartimento di Fisica, 2° Universita' di Roma Tor Vergata, via Orazio Raimondo, I-00173 Rome, Italy |
| Abstract: | The wavelength dependence of the second-harmonic (SH) generation efficiency has been measured in copper. A strong enhancement of the SH generation has been observed at the onset of interband transitions. Above the absorption edge the second-order polarization is dominated by the nonlinear response of bound electrons. |
| Keywords: | 42 65 Ky 78 65 Ez |
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