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physics.optics2026

Interference-Based 3D Optical Cold Damping of a Levitated Nanoparticle

Youssef Ezzo, Seyed Khalil Alavi, Sungkun Hong

Achieving efficient three-dimensional feedback cooling of levitated nanoparticles is a key requirement for precision sensing and quantum control in levitated optomechanics. Here we…

physics.optics2025

Compact vacuum levitation and control platform with a single 3D-printed fiber lens

Seyed Khalil Alavi, Jose Manuel Monterrosas Romero, Pavel Ruchka +3

Levitated dielectric particles in a vacuum have emerged as a new platform in quantum science, with applications ranging from precision acceleration and force sensing to testing qua…

physics.optics2025

Efficient, inverse large-scale optimization of diffractive lenses

Marco Gerhardt, Sungkun Hong, Moosung Lee

Scalable photonic optimization holds the promise of significantly enhancing the performance of diffractive lenses across a wide range of photonic applications. However, the high co…

physics.optics2025

Inverse Microparticle Design for Enhanced Optical Trapping and Detection Efficiency in All Six Degrees of Freedom

Moosung Lee, Benjamin A. Stickler, Thomas Pertsch +1

Achieving quantum-limited motional control of optically trapped particles beyond the sub-micrometer scale is an outstanding problem in levitated optomechanics. A key obstacle is so…

physics.optics2025

Optical levitation of fluorescent silicon carbide nanoparticles in vacuum

Seyed Khalil Alavi, Cheng-I Ho, Iuliia Neumann +4

Levitated optomechanics is an emerging field in quantum science that explores the quantum motion of mesoscopic particles levitated in a vacuum. Expanding this approach to particles…

physics.optics2024

Modelling Optomechanical Responses in Optical Tweezers Beyond Paraxial Limits

Moosung Lee, Tobias Hanke, Sara Launer +1

Optically levitated dielectric nanoparticles have become valuable tools for precision sensing and quantum optomechanical experiments. To predict the dynamic properties of a particl…