Spin-polarized lasing in a photonic lattice
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866916031016992768 |
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| author | Otermin, A. Herrero Zambon, N. Carlon Bieganowska, A. Jabeen, F. Viña, L. Antón-Solanas, C. |
| author_facet | Otermin, A. Herrero Zambon, N. Carlon Bieganowska, A. Jabeen, F. Viña, L. Antón-Solanas, C. |
| contents | We characterize spin-polarized lasing in a two-dimensional photonic lattice fabricated from a GaAs/InGaAs semiconductor microcavity sample. The lattice is defined by a staggered arrangement of rounded rectangular micrometric mesas that laterally confine and couple the optical modes. Polarization-, angle-, and energy-resolved micro-photoluminescence measurements reveal the transition from the strong-coupling regime to photon lasing, accompanied by extended spatial coherence across several lattice unit cells. Under circularly polarized nonresonant excitation, the emitted light acquires a controllable circular polarization whose handedness follows that of the pump. These results establish photonic-lattice VCSELs as a platform for spin-controlled coherent emission in extended optical systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_20927 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Spin-polarized lasing in a photonic lattice Otermin, A. Herrero Zambon, N. Carlon Bieganowska, A. Jabeen, F. Viña, L. Antón-Solanas, C. Optics Mesoscale and Nanoscale Physics We characterize spin-polarized lasing in a two-dimensional photonic lattice fabricated from a GaAs/InGaAs semiconductor microcavity sample. The lattice is defined by a staggered arrangement of rounded rectangular micrometric mesas that laterally confine and couple the optical modes. Polarization-, angle-, and energy-resolved micro-photoluminescence measurements reveal the transition from the strong-coupling regime to photon lasing, accompanied by extended spatial coherence across several lattice unit cells. Under circularly polarized nonresonant excitation, the emitted light acquires a controllable circular polarization whose handedness follows that of the pump. These results establish photonic-lattice VCSELs as a platform for spin-controlled coherent emission in extended optical systems. |
| title | Spin-polarized lasing in a photonic lattice |
| topic | Optics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2605.20927 |