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Electrically tunable spin-orbit coupled photonic lattice in a liquid crystal microcavity

Version 1.0

Muszyński, Marcin; Oliwa, Przemysław; Kokhanchik, Pavel; Kapuściński, Piotr; Oton, Eva; Mazur, Rafał; Morawiak, Przemysław; Piecek, Wiktor; Kula, Przemysław; Bardyszewski, Witold; Piętka, Barbara; Bobylev, Daniil; Solnyshkov, Dmitry; Malpuech, Guillaume; Szczytko, Jacek, 2025, "Electrically tunable spin-orbit coupled photonic lattice in a liquid crystal microcavity", https://doi.org/10.58132/ITRHAV, Dane Badawcze UW, V1

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Description

We create a one-dimensional photonic crystal with strong polarization dependence and tunable by an applied electric field.

We accomplish this in a planar microcavity by embedding a cholesteric liquid crystal (LC), which spontaneously forms a uniform lying helix (ULH). The applied voltage controls the orientation of the LC molecules and, consequently, the strength of a polarization-dependent periodic potential. It leads to opening or closing of photonic band gaps in the dispersion of the massive photons in the microcavity. In addition, when the ULH structure possesses a molecular tilt, it induces a spin-orbit coupling between the lattice bands of different parity. This interband spin-orbit coupling (ISOC) is analogous to optical activity and can be treated as a synthetic non-Abelian gauge potential.

Finally, we show that doping the LC with dyes allows us to achieve lasing that inherits all the above-mentioned tunable properties of LC microcavity, including dual and circularly-polarized lasing.

Subject

Physics

Keyword

N/A

Related Publication

Muszyński M., Oliwa P., Kokhanchik P., Kapuściński P., Otón E., Mazur R., Morawiak P., Piecek W., Kula P., Bardyszewski W., Pietka B., Bobylev D., Solnyshkov D., Malpuech G., Szczytko J. (2024). Electrically Tunable Spin‐Orbit Coupled Photonic Lattice in a Liquid Crystal Microcavity. Laser & Photonics Reviews. 19, https://doi.org/10.1002/lpor.202400794 https://doi.org/10.1002/lpor.202400794 doi: 10.1002/lpor.202400794

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CC BY - Creative Commons Attribution 4.0

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		readme.txt Plain Text - 2.6 KB - Sep 29, 2025 - 0 Downloads MD5: e5bb9149a2cab157d3dfa996cb418b03 License: CC BY - Creative Commons Attribution 4.0 Meta Data	Preview Download
		Figure_1.zip ZIP Archive - 119.0 KB - Sep 29, 2025 - 0 Downloads MD5: e480d439a1328aaee379dfe77e4a7b2e License: CC BY - Creative Commons Attribution 4.0 Figure_1: Polarized optical microscopy images of light transmitted through a (Figure_1b.png) standard (non-tilted, sample A) and (Figure_1c.png) tilted (sample B) ULH texture embedded inside a LC microcavity.	Download
		Figure_2.zip ZIP Archive - 6.7 MB - Sep 29, 2025 - 0 Downloads MD5: 47583eff87f6d58f65bc090bf890b857 License: CC BY - Creative Commons Attribution 4.0 Figure_2: - model, refr_index files: epsxx and epsyy contain x and y axes of the ellipse; In this case, color function can be defined as: c = (Cos[2ArcTan[x, y - i\Delta y]] + 1)/2] for every ellipse i; - model, director files: epstens contains 55 tensors; y and z contains the coordinates of their centers, color contains the uniform color of each tensor; it is defined by azimuthal angle of the ellipse with respect to z axis - Figures_2_data_panel_(e-j).txt: Experimental data of momentum-resolved transmission spectra for the corresponding panels (2D matrices). Figure_2_y_axis.txt: Vector of energy values (y-axis). Figure_2_x_axis_kvector.txt: Vector of wavevector values (x-axis).	Download
		Figure_3.zip ZIP Archive - 17.7 MB - Sep 29, 2025 - 0 Downloads MD5: d029c7036ec9e241a3697ea91904b4d0 License: CC BY - Creative Commons Attribution 4.0 Figure_3: - Experiment: Data organized similarly to Figures_2_data_panel_(e-j).txt in Figure_2. - Theory_a: Data organized similarly to the model and refr_index files in Figure_2. - Theory_bc: Stokes_1.mat and Stokes_3.mat contain theoretical data of momentum-resolved spectra from panels (b) and (c). energy.mat and kxs.mat correspond to the y- and x-axes, respectively. - Theory_g-l: Theory_S[...]_matrix.txt contains theoretical data of momentum-resolved spectra from panels (g–l).	Download
		Figure_4.zip ZIP Archive - 170.3 KB - Sep 29, 2025 - 0 Downloads MD5: 902715a1995856ba36c4671903f69a48 License: CC BY - Creative Commons Attribution 4.0 Figure_4: Figures_4_data_panel_(a,b).txt: Experimental data of momentum-resolved photoluminescence spectra for the corresponding panels (2D matrices); Figure_2_yscale.txt: Vector of energy values (y-axis); Figure_2_x_axis_kvector.txt: Vector of wavevector values (x-axis).	Download
		Figure_S4.zip ZIP Archive - 6.1 MB - Sep 29, 2025 - 0 Downloads MD5: ca995f3f0877b63a4f6793cc79249f50 License: CC BY - Creative Commons Attribution 4.0 Figure_S4: - Data organized similarly to Figures_2_data_panel_(e-j).txt in Figure_2.	Download
		Figure_S5.zip ZIP Archive - 331.1 KB - Sep 29, 2025 - 0 Downloads MD5: c6ca18408327957aca7928089cd14710 License: CC BY - Creative Commons Attribution 4.0 Figure_S5: - Figure_S5_data_panel_(a,b).txt: Data organized similarly to Figures_2_data_panel_(e-j).txt in Figure 2. - Figure_S5_data_panel_c.txt: The first column corresponds to energy; the other columns correspond to photoluminescence spectra collected for different excitation energies, ordered in the same manner as in the Figure S5.	Download
		Figure_S6.zip ZIP Archive - 940 B - Sep 29, 2025 - 0 Downloads MD5: 72fee15497036ca5c78dba3d63ec4298 License: CC BY - Creative Commons Attribution 4.0 Figure_S6: - Figure_S6_data.txt: The first column corresponds to excitation energy; the second, third, and fourth columns to the extracted amplitudes of three peaks; and the fifth, sixth, and seventh columns to their FWHM.	Download

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