Experimental data from the article "Realizing Persistent-Spin-Helix Lasing in the Regime of Rashba-Dresselhaus Spin-Orbit Coupling in a Dye-Filled Liquid-Crystal Optical Microcavity" by Marcin Muszyński et. al. The article is available online in arXiv:2109.07338 [physics.optics] and in Physical Review Applied 17, 014041 (2022) (Fig.2, Fig.3, Fig.4 and Fig.5).
The optical gain introduced into the liquid crystal optical microcavity system allowed to observe the lasing in the Rashba-Dresselhaus regime and the nonlinear optical persistent spin-helix effect at room temperature. The persistent spin-helix lasing is a consequence of the spin coherence of the system and the platform that we propose can be used in quantum communication, in which information is encoded through light polarization. The research was done with the use of polarization- and angle-resolved optical spectroscopy and microscopy.
The dataset consists of 4 files:
Fig2.zip – The experimental emission spectra collected for different pulse energies. 2a, 2b and 2c are angularly-resolved, 2d is obtained for the perpendicular direction. 2e contains the emission intensity, line width and peak position as a function of the energy density.
Fig3.zip – The experimental angle-resolved emission spectra collected above the lasing threshold for different applied voltages (3a, 3b, 3c). 3d contains two series of measured lasing peak position vs applied voltage.
Fig4.zip – The experimental angle-resolved emission collected above the lasing threshold in Rashba-Dresselhaus resonance for the total emission intensity (3b, 3d) and for the degree of circular polarization (3c, 3e). 3b and 3c contains spectra, while 3d and 3e momentum space images.
Fig5.zip – The S1 (5a), S2 (5b) and S3 (5c) Stokes parameters for real-space imaging. Histogram_negative and histogram_positive data correspond to the negative and positive values of Stokes parameters along the y direction.
(2022-08)