Erratum to: Nonlinear optical absorption and NIR to blue conversion in highly stable polymeric dye rod

1 Erratum to: Appl Phys B (2012) 108:469–474 DOI 10.1007/s00340-012-4915-y

The corresponding author would like to apologize for the mistakes appeared in the article and request the following rectifications.

• 1. The following corrected values for lasers should be used throughout the article:

Excitation sources were N2 laser (337 nm) and 808 nm diode laser (cw and pulsed modes).

• 2. The statement in the 2nd page, 2nd paragraph in the 2nd column, should be read as follows:

The output photoluminescence was collected using a 10-cm lens and detected by a grating spectrometer or monochromator of 1 Å spectral resolution (SPEX 750M), connected with a photomultiplier and a data scan [SPEX DS1010]. (Fig. 4a and 4b) The narrow emission bands presented in the article are detected again but from different samples indicating that they arise from the laser itself. Blue and blue-greenish upconversion luminescences are observed to the naked eye by excitation at 1046 nm of Nd:YAG laser pulses. Their pictures are presented below in Figs. 1a and 1b. The samples are located before the focus, where a breakdown in air is formed. Fig.1c pictures the samples’ luminescence upon exposed to a UV lamp.

Fig. 1

a Blue and b blue-greenish upconversion luminescence by excitation at 1064 nm (air breakdown appeared as a bright spot below the samples). c Luminescence by a UV lamp

High photo-stability was again confirmed by continuously pumping the samples for two hours using a laser diode of photon energy 3.06 eV and power 200 mW. The detected output powers for both samples were decreased to an average of ~65% of their initial values.