dispersion of induced amplitude and phase anisotropy of viscous solutions of dyes

Chernyavskii, V. A.; Pikulik, L. G.; Rudik, R. I.; Grib, A. F.

doi:10.1007/bf02675639

Cited by 1 publication

(2 citation statements)

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“…It is widely recognized that the intense laser pump radiation in dye laser systems induces an anisotropy in the solution that affects the polarization state of the amplified laser radiation 34 35 36 37 38 . This anisotropy is induced by two different effects, a phase anisotropy due to a difference in refractive indices “feel” by the different cavity modes, and an amplitude anisotropy due to a dissimilar amplification of them.…”

Section: Discussionmentioning

confidence: 99%

“…This anisotropy is induced by two different effects, a phase anisotropy due to a difference in refractive indices “feel” by the different cavity modes, and an amplitude anisotropy due to a dissimilar amplification of them. Most experimental works thoroughly studying the laser induced anisotropy have been carried out in amplifiers 34 35 36 37 38 . On the other hand, the existing experimental works dealing with the oscillator only focused on the output intensity and the degree of polarization 26 28 29 30 31 32 , and the complete picture has only been dealt theoretically 35 , with no quantitative results available, hence the relevance of the present work.…”

Section: Discussionmentioning

confidence: 99%

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Circularly polarized laser emission induced in isotropic and achiral dye systems

Cerdán

García-Moreno

Costela

et al. 2016

Sci Rep

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The production of efficient, tunable, and switchable circularly polarized laser emission would have far reaching implications in optical communications or biophotonics. In this work, it is demonstrated the direct generation of circularly polarized (CP) laser emission in achiral and isotropic dye laser systems without the use of extracavity polarizing elements, and without resorting to chiral dyes, chiral liquid crystal matrices, or interferometric methods. The origin of this ellipticity arises from the dynamic birefringence induced by the strong and polarized laser pumping and the subsequent orientation anisotropy of the excited molecular dipoles. A complete polarimetric characterization of the polarization state of conventional dye laser oscillators as a function of different experimental parameters is performed and it is shown that the generated light always possesses a certain level of circularity that changes in a distinctive way with pump energy and polarization. These results demonstrate that it is possible to generate and modulate CP laser light from efficient and photostable conventional laser dyes.

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