Two-photon absorption: an overview of measurements and principles

M Rumi, JW Perry - Advances in Optics and Photonics, 2010 - opg.optica.org
The range of organic compounds whose degenerate two-photon absorption (2PA) spectrum
has been reported has increased rapidly in recent years, in parallel with the growing interest …

Observations on the measurement of two-photon absorption cross-section

DA Oulianov, IV Tomov, AS Dvornikov… - Optics …, 2001 - Elsevier
We have measured two-photon absorption (TPA) cross-sections of four organic molecules in
solution. The data show that the nonlinear transmission method without consideration of …

Two-photon absorption standards in the 550–1600 nm excitation wavelength range

NS Makarov, M Drobizhev, A Rebane - Optics express, 2008 - opg.optica.org
We present absolute two-photon absorption (2PA) spectra of 15 commercial organic dyes
covering an extended range of excitation wavelengths, 550-1600 nm. The 2PA is measured …

High-accuracy reference standards for two-photon absorption in the 680–1050 nm wavelength range

S de Reguardati, J Pahapill, A Mikhailov… - Optics …, 2016 - opg.optica.org
Degenerate two-photon absorption (2PA) of a series of organic fluorophores is measured
using femtosecond fluorescence excitation method in the wavelength range, λ_2PA= 680 …

Resonant enhancement of two-photon absorption in substituted fluorene molecules

JM Hales, DJ Hagan, EW Van Stryland… - The Journal of …, 2004 - pubs.aip.org
The degenerate and nondegenerate two-photon absorption 2PA spectra for a symmetric
and an asymmetric fluorene derivative were experimentally measured in order to determine …

Effects of π centers and symmetry on two-photon absorption cross sections of organic chromophores

CK Wang, P Macak, Y Luo, H Ågren - The Journal of chemical physics, 2001 - pubs.aip.org
We have theoretically examined a series of organic molecules that exhibit large two-photon
absorption cross sections in the visible region and that have been synthesized in different …

Generalized few-state models for two-photon absorption of conjugated molecules

P Cronstrand, Y Luo, H Ågren - Chemical physics letters, 2002 - Elsevier
We present three-and four-state models for two-photon absorption (TPA) cross-sections
generalized to include dipolar direction information and polarization effects of the laser …

Two-photon absorption properties of symmetric substituted diacetylene: drastic enhancement of the cross section near the one-photon absorption peak

K Kamada, K Ohta, Y Iwase, K Kondo - Chemical Physics Letters, 2003 - Elsevier
Two-photon absorption (TPA) spectra are presented for newly synthesized bis (pyridylstyryl)-
substituted diacetylene and related methyl triflate derivatives. The TPA cross section of a …

Role of dimensionality on the two‐photon absorption response of conjugated molecules: the case of octupolar compounds

D Beljonne, W Wenseleers, E Zojer… - Advanced Functional …, 2002 - Wiley Online Library
A comparative study of the two‐photon absorption (TPA) properties of octupolar compounds
and their dipolar one‐dimensional counterparts is presented on the basis of correlated …

p-Bis (o-methylstyryl) benzene as a power-squared sensor for two-photon absorption measurements between 537 and 694 nm

SM Kennedy, FE Lytle - Analytical Chemistry, 1986 - ACS Publications
As a result of the mode noise of common dye lasers em-ployed In the accumulation of two-
photon spectral data, band shapes and peak heights are most often source dependent. If …