Harmonic holographic microscopy with circularly polarized excitation
Abstract
We have developed a luminescent marker using the second harmonic generation (SHG) from noncentrosymmetric BaTiO_3 nanocrystals. These nanoparticles are attractive due to their stable, non-saturating and coherent signal with a femtosecond-scale response time and broad flexibility in the choice of excitation wavelength. In this paper, we report the SHG response of BaTiO_3 nanocrystals under a circularly polarized excitation. We observed a more uniform SHG signal intensity from nanocrystals of different crystal orientations under a circularly polarized excitation. The three-dimensional (3D) SHG fields generated from the SHRIMPs were recorded by a harmonic holographic microscope. Submicron resolution in both lateral and axial directions has been achieved. We show that the circularly polarized excitation is useful for harmonic holographic microscopy.
Additional Information
© 2009 Society of Photo-Optical Instrumentation Engineers (SPIE).Attached Files
Published - 73670R_1.pdf
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Additional details
- Eprint ID
- 73663
- Resolver ID
- CaltechAUTHORS:20170124-104802338
- Created
-
2017-01-26Created from EPrint's datestamp field
- Updated
-
2021-11-11Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 7367