TECHNOLOGY LICENSING OPPORTUNITY: Tunable-Index Nanoscale OAM Beams via van der Waals Materials

Solicitation description

Structured light beams with tunable wavelength and orbital angular momentum (OAM) are enabling new frontiers in optical communication and quantum information science. However, conventional methods for generating such beams rely on spatial light modulators or bulk nonlinear optical crystals, which limit scalability and integration. This new platform leverages van der Waals materials to tune both the wavelength, OAM, and radial structure of vortex beams, using nonlinear optical processes such as sum frequency generation, difference frequency generation, four-wave mixing, and higher-order harmonic generation, all over exceptionally broad spectral ranges due to the elimination of phase matching constraints. The result is an ultracompact material platform that supports robust structured-light manipulation, readily integrable with vertically-integrated free-space nanophotonic vortex light sources to enable applications in optical and quantum communication and optical sensing. Advantages Allows for the free tuning of wavelength, orbital angular momentum, and radial index across a broad spectral range. Integrates into compact, planar, nanophotonic platforms. Supports seamless compatibility with metasurfaces and similar nanophotonic devices. Delivers high nonlinear conversion efficiency in a minimal volume. Eliminates the need for bulky optical components such as spatial light modulators (SLMs) and bulk nonlinear crystals. Enables both quantum and classical applications in integrated optics. Technology Description The technology leverages the unique nonlinear optical properties of atomically thin van der Waals materials to manipulate all the elementary properties of structured light-fields carrying orbital angular momentum. These materials enable broadband nonlinear conversion (due to the absence of phase matching constraints) with improved efficiency and compactness compared to traditional bulk nonlinear optical crystals at comparable lengthscales. Unlike existing solutions, this platform would eliminate the need for external spatial light modulators and bulk nonlinear optical crystals. It is fully compatible with metasurfaces and can be integrated into nanophotonic and optoelectronic devices for wavelength-tunable structured light generation. Market Applications This technology is well suited for integrated photonics platforms in both classical and quantum domains. Potential uses include: enabling high-density data transmission through OAM-multiplexed optical interconnects; producing compact, tunable structured-light sources for quantum communication; and enhancing optical sensing and detection using structured-light techniques. The ability to robustly generate and manipulate OAM beams at the nanoscale would open new possibilities for data transmission, quantum communications, and light-matter interaction control in next-generation optical devices. Development Status: TRL 3 LA-UR-25-31343 US Patent Pending LANL Tech Partnerships: Unlock the...

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