Whispering gallery modes in two-photon fluorescence from spherical DCM dye microresonators. (5th February 2018)

• Record Type: Journal Article
• Authors: Mamonov, Evgeniy A; Maydykovskiy, Anton I; Mitetelo, Nikolai V; Venkatakrishnarao, Dasari; Chandrasekar, Rajadurai; Murzina, Tatyana V
• Is Part Of: Laser physics letters. Volume 15:Number 3(2018:Mar.)
• Publication Date: 2018-02-05
• Subjects: organic microstructures -- whispering gallery modes -- resonators -- two-photon fluorescence; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aa9b23
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: Organic microstructures are well known for their resonator properties, which bring about whispering gallery mode (WGM) excitation. Here we report on experimental evidence of the WGM in the two-photon fluorescence (TPF) of DCM dye microspheres made using the self-assembly method. The WGM excitation accompanying the overall TPF in the spectral range from 530 ÷ 640 nm demonstrated a quality factor of approximately 10 2 for spheres that were several microns in diameter. The power dependence of the TPF intensity proved the second order nature of the interaction process involved.