Title :
Local fluorescent dye excitation with guided second-harmonic in lithium niobate nanowires
Author :
Sergeyev, Anton ; Geiss, Reinhard ; Solntsev, Alexander ; Kley, Ernst-Bernhard ; Pertsch, Thomas ; Grange, Rachel
Author_Institution :
Abbe Center of Photonics, Friedrich Schiller Univ., Jena, Germany
Abstract :
We have generated second-harmonic (SH) signal in lithium niobate (LiNbO3) nanowires (NWs) to locally excite fluorescent dye in typical cell staining concentration. We show the second-order behavior of the SH signal in a NW with cross-section of 400×600 nm2. A guided SH power of 63±6 pW is needed to detect dye excitation in a 1 μg/ml DAPI dye solution. We also perform simulations to define that the LiNbO3 NWs with cross-sections down to 40×60nm2 are potentially able to produce the threshold amount of the SH power.
Keywords :
dyes; fluorescence; lithium compounds; nanowires; optical harmonic generation; DAPI dye solution; LiNbO3; dye excitation detection; guided second-harmonic power; guided second-harmonic signal; lithium niobate nanowires; local fluorescent dye excitation; second-order behavior; Fluorescence; Frequency conversion; Laser excitation; Lithium niobate; Nanowires; Physics; Signal to noise ratio;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
