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Stimulated laser induced fluorescence holography for imaging fluorescent species
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0003-4853-870X
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0001-8355-2414
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0003-4879-8261
2013 (engelsk)Inngår i: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 311, s. 124-128Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this paper pulsed digital holographic detection is coupled to the stimulated laser induced fluorescence (LIF) effect for imaging fluorescent species. A frequency tripled Q-switched Nd-YAG laser (wavelength 355 nm, pulse duration 12 ns) has been used to pump Coumarin 153 dye solved in ethanol. Simultaneously a frequency doubled pulse (532 nm) from the same laser is used to probe the solvent resulting in a gain through stimulated emission. The resulting gain of the probe beam is recorded using digital holography by blending it with a reference beam on the detector. Intensity maps were calculated from the recorded digital holograms and used to calculate the gain of the probe beam due to stimulated fluorescence emission which is coupled to the concentration of the dye. The results show that the amplification of the probe beam (532 nm) due to stimulated LIF emission is seen in the intensity maps. The gain is about 40% at a dye concentration of 0.32 g/L and decreases to be about 20% at a dye concentration of 0.04 g/L for a probe beam energy density of 0.1 mJ/cm2. Spectroscopic measurements have been carried out to confirm the holographic results. The results show that stimulated LIF holography is a promising technique for quantitative imaging of fluorescent species.

sted, utgiver, år, opplag, sider
2013. Vol. 311, s. 124-128
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Experimentell mekanik
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URN: urn:nbn:se:ltu:diva-5681DOI: 10.1016/j.optcom.2013.08.056ISI: 000330908800021Scopus ID: 2-s2.0-84884266975Lokal ID: 3d8b1a3a-c76a-4a7a-a05e-537d78ba0c4aOAI: oai:DiVA.org:ltu-5681DiVA, id: diva2:978555
Merknad
Validerad; 2013; 20130902 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Amer, EynasGren, PerSjödahl, Mikael
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