Second-order nonlinear optical properties of nanocrystalline maghemite particles

✍ Scribed by Sebastien Gallet; Thierry Verbiest; André Persoons

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 170 KB
• Volume: 378
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/s0009-2614(03)01259-4

✦ Synopsis

The second-order nonlinear optical properties of maghemite crystallites were experimentally studied in chloroform solution by hyper-Rayleigh scattering. The hyperpolarizability on a per particle basis was found to be extremely large, i.e., on the order of 92 000 10 À30 esu. However, when the hyperpolarizability was calculated on a per volume basis, the nonlinearity agreed well with the macroscopic nonlinearities of typical inorganic crystals.