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Photostable single KTiOPO4 nanocrystals for second-harmonic generation microscopy

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publication2007 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, OMENS
Pages39-40
Number of pages2
DOIs
Publication statusPublished - 2007
Externally publishedYes
Publication typeA4 Article in a conference publication
Event2007 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, OMENS - Hualien, Taiwan, Province of China
Duration: 12 Aug 200716 Aug 2007

Conference

Conference2007 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, OMENS
CountryTaiwan, Province of China
CityHualien
Period12/08/0716/08/07

Abstract

The finding of nonlinear nanometrie-sized probes is of key importance for the development of nonlinear microscopy in nanosciences and biology. We isolate nonlinear KTiOPO4 nanocrystals with remarkable photostability in second-harmonic generation under femtosecond infrared laser light excitation. Their size distribution is determined using dynamic light scattering and atomic force microscopy. With both polarization analysis and defocused imaging of the emitted second-harmonic field, we also extract the Euler angles of the crystalline axes of a single nanocrystal. These sub-wavelength particles can find application as near-field vectorial probes.

Keywords

  • Nanocrystal, Nonlinear microscopy, Second harmonic generation