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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/2487

Title: Photoacoustic detection of two photon absorption in formaldehyde using pulsed dye laser
Authors: Ravi Kumar, A V
Padmaja, G
Nampoori, V P N
Vallabhan, C P G
Keywords: Two photon absorption
photoacoustic spectrum
overtone absorption
Issue Date: Nov-1989
Publisher: Springer
Abstract: Absorption spectra of formaldehyde molecule in the gas phase have been recorded using photoacoustic (PA) technique with pulsed dye laser at various power levels. The spectral profiles at higher power levels are found to be different from that obtained at lower laser powers. Two photon absorption (TPA) is found to be responsible for the photoacoustic signal at higher laser power while the absorption at lower laser power level is attributed to one photon absorption (OPA) process. Probable assignments for the different transitions are given in this paper.
URI: http://dyuthi.cusat.ac.in/purl/2487
ISSN: 0304-4289
Appears in Collections:Dr.C P Girijavallabhan

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