Person
Rachel Grange
This person is no longer with EPFL
Related publications (22)
Second harmonic generation from nanocrystals under linearly and circularly polarized excitations
Demetri Psaltis, Ye Pu, Rachel Grange, Chia-Lung Hsieh
We study second harmonic generation (SHG) from noncentrosymmetric nanocrystals under linearly polarized (LP) and circularly polarized (CP) excitations. Theoretical models are developed for SHG from nanocrystals under both plane-wave and focused excitations ...
2010Optofluidic applications with lithium niobate nanowires
Demetri Psaltis, Ye Pu, Rachel Grange, Chia-Lung Hsieh, Jae-Woo Choi
We report the hydrothermal synthesis of free-standing lithium niobate nanowires. We show that the versatile properties of bulk lithium niobate such as nonlinear optical effects can be exploited at the nanoscale. We describe the fabrication of polydimethyls ...
Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010Enhanced Second Harmonic Generation in Plasmonic Nanocavities
Demetri Psaltis, Ye Pu, Rachel Grange, Chia-Lung Hsieh
We experimentally demonstrate significantly enhanced second harmonic generation using nanoengineered plasmonic nanocavities of core-shell structures (BaTiO3/Au). An enhancement factor of over 500 is measured in the second harmonic scattering efficiency com ...
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010Optically Generated Electric Fields by Lithium Niobate Nanowires
Demetri Psaltis, László Forró, Arnaud Magrez, Ye Pu, Rachel Grange, Chia-Lung Hsieh, Jae-Woo Choi, Rita Smajda
We demonstrate that lithium niobate nanowires generate electric fields under 514 nm continuous wave laser illumination. Birefringent media are used to visualize the generated fields in a microfluidic channel. Input laser polarization dependence is shown. ( ...
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010Three-dimensional harmonic holographic microcopy using nanoparticles as probes for cell imaging: erratum
Demetri Psaltis, Ye Pu, Rachel Grange, Chia-Lung Hsieh
An error was made in calculating the polarization dependent second harmonic response of barium titanate nanoparticles. We have corrected the error and repeated the comparison with the experimental results. (C) 2010 Optical Society of America ...
2010Lithium niobate nanowires synthesis, optical properties, and manipulation
Demetri Psaltis, László Forró, Arnaud Magrez, Ye Pu, Rachel Grange, Chia-Lung Hsieh, Jae-Woo Choi, Rita Smajda
Free-standing lithium niobate nanowires (LiNbO3) are synthesized by the hydrothermal route. The polarization response of the second harmonic generation (SHG) signal is measured in a single nanowire and used to identify the crystal orientation by matching w ...
2009Harmonic holographic microscopy with circularly polarized excitation
Demetri Psaltis, Ye Pu, Rachel Grange, Chia-Lung Hsieh
We have developed a luminescent marker using the second harmonic generation (SHG) from noncentrosymmetric BaTiO3 nanocrystals. These nanoparticles are attractive due to their stable, non-saturating and coherent signal with a femtosecond-scale response time ...
2009Barium titanate nanoparticles used as second harmonic radiation imaging probes for cell imaging
Demetri Psaltis, Ye Pu, Rachel Grange, Chia-Lung Hsieh
Luminescent markers play a key role in imaging techniques for life science since they provide a contrast mechanism between signal and background. We describe a new type of marker using second harmonic generation (SHG) from noncentrosymmetric BaTiO3 nanocry ...
2009Harmonic holography for three-dimensional cellular imaging
Demetri Psaltis, Ye Pu, Rachel Grange, Chia-Lung Hsieh
Luminescent markers play a key role in imaging techniques for life sciences since they provide a contrast mechanism between signal and background. We describe a new type of marker using second harmonic generation (SHG) from noncentrosymmetric BaTiO3 nanocr ...
2009Harmonic Holographic Microscopy Using Nanoparticles as Probes for Three-Dimensional Cell Imaging
Demetri Psaltis, Ye Pu, Rachel Grange, Chia-Lung Hsieh
We demonstrate the three-dimensional imaging capability of harmonic holographic microscopy by using the second harmonic generation from BaTiO3 nanoparticles as the signal. Three-dimensional distributions of the BaTiO3 nanoparticles in biological cells are ...
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009