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236 Aktuelle Fachpublikationen in Laser Physics Letters

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Stimulated Raman scattering spectroscopy and χ(3)‐nonlinear lasing effects in single crystals of aragonite (orthorhombic CaCO3)

01.04.2012 | Kaminskii, A.A.; Rhee, H.; Lux, O.; Eichler, H.J.; Koltashev, V.V.; Kleinschrodt, R.; Bohatý, L.; Becker, P., Laser Physics Letters, 2012

Abstract The present work gives a brief review of the nonlinear χ(2)‐ and χ(3)‐lasing properties of SRS‐active natural crystals (minerals) known so far. This compilation complements new results of a detailed investigation of Raman induced χ(3)‐effects in aragonite single crystals (orthorhombic ...

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New modality in optical microscopy based on laser with injected radiation

01.04.2012 | Gonchukov, S.A.; Lonkina, T.V.; Yermachenko, V.M., Laser Physics Letters, 2012

Abstract In this work it is shown, that laser with injection of reflected radiation can possess the high longitudinal spatial selectivity. Laser figures here both the emitter and the detector of radiation. This attribute, having volumetric character for laser fields, can be considered as a new ...

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Accurate and noninvasive embryos screening during in vitro fertilization (IVF) assisted by Raman analysis ofembryos culture medium

01.04.2012 | Shen, A.G.; Peng, J.; Zhao, Q.H.; Su, L.; Wang, X.H.; Hu, J.M.; Yang, Q., Laser Physics Letters, 2012

Abstract In combination with morphological evaluation tests, we employ Raman spectroscopy to select higher potential reproductive embryos during in vitro fertilization (IVF) based on chemical composition of embryos culture medium. In this study, 57 Raman spectra are acquired from both higher ...

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Diode‐pumped continuous‐wave blue laser operation of Nd:GGG at 467.0, 467.7, and 468.5 nm

01.04.2012 | Xu, B.; Camy, P.; Doualan, J.L.; Braud, A.; Cai, Z.P.; Brenier, A.; Moncorgé, R., Laser Physics Letters, 2012

Abstract Intra‐cavity frequency doubling of continuous‐wave (CW) laser emission on the quasi‐three level (4F3/2 → 4I9/2) laser transition of Nd3+ in Nd:GGG is reported by using a three‐mirror folded resonator. The thermal lens experienced by the optically‐pumped Nd:GGG laser crystal is measured ...

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Spectroscopic properties and laser performance of a new mixed Yb0.015:Lu0.162Gd0.823VO4 crystal

01.04.2012 | Liu, J.; Kong, W.; Han, W.; Zhang, H.; Mateos, X.; Petrov, V., Laser Physics Letters, 2012

Abstract Spectroscopic properties and continuous‐wave laser performance of a new Yb0.015:Lu0.162Gd0.823VO4 mixed vanadate crystal are reported. An appreciable discontinuous increase in output power occurs during the σ ‐ to π ‐polarization switching process in the laser oscillation. A maximum ...

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Laser properties of Fe:Cr:Zn1–xMgxSe crystal for tunable mid‐infrared laser sources

01.04.2012 | Doroshenko, M.E.; Jelínková, H.; Šulc, J.; Jelínek, M.; Němec, M.; Basiev, T.T.; Za ..., Laser Physics Letters, 2012

Abstract The characterization of new gain‐switched Fe:Cr:Zn1–xMgxSe laser working at the room temperature and its comparison to Fe:ZnSe laser was performed. The laser oscillation behavior, generation efficiency and output wavelength tuning possibilities were demonstrated. It was shown that the ...

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Transmission spectroscopy of dengue viral infection

01.04.2012 | Firdous, S.; Ahmed, M.; Rehman, A.; Nawaz, M.; Anwar, S.; Murtaza, S., Laser Physics Letters, 2012

Abstract We presented the rapid diagnostic test for dengue infection based on light spectrum of human blood. The transmission spectra of dengue infected whole blood samples have been recorded in ultra violet to near infrared range (400–800 nm) of about 30 conformed infected patients and ...

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Compact passively Q‐switched diode‐pumped Tm:KY(WO4)2 laser with 8 ns/30/LJ pulses

01.04.2012 | Gaponenko, M.S.; Onushchenko, A.A.; Kisel, V.E.; Malyarevich, A.M.; Yumashev, K.V.; Kuleshov, N.V., Laser Physics Letters, 2012

Abstract A compact diode‐pumped solid‐state Tm:KY(WO4)2 laser with cavity length of 1 cm passively Q‐switched with a PbS‐quantum‐dot‐based saturable absorber is presented. The laser operates at the wavelength of 1.94 µm and produces pulses with duration of 8 ns and energy of 30 µJ at the ...

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Laser properties of Fe:Cr:Zn1–xMgxSe crystal for tunable mid‐infrared laser sources

30.01.2012 | Doroshenko, M.E.; Jelínková, H.; Šulc, J.; Jelínek, M.; Němec, M.; Basiev, T.T.; Za ..., Laser Physics Letters, 2012

Abstract The characterization of new gain‐switched Fe:Cr:Zn1–xMgxSe laser working at the room temperature and its comparison to Fe:ZnSe laser was performed. The laser oscillation behavior, generation efficiency and output wavelength tuning possibilities were demonstrated. It was shown that the ...

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High‐order stimulated Raman scattering in tetragonal CaYAlO4 crystal‐host for Ln3+‐lasant ions

30.01.2012 | Kaminskii, A.A.; Xu, X.; Lux, O.; Rhee, H.; Eichler, H.J.; Zhang, J.; Zhou, D.; Shirakawa, A.; Ueda, K.; Xu, J., Laser Physics Letters, 2012

Abstract Multiple Stokes and anti‐Stokes χ(3)‐nonlinear generation in the tetragonal crystal of CaYAlO4 was observed at 300K and ≈9K under picosecond excitation in the visible spectral range. All the recorded Raman induced laser lines were identified and attributed to the SRS‐promoting ...

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