Lee, W. M.Chow, T. H.Ng, B. K.2026-01-012026-01-019781557529091ORCID:/0000-0002-3912-6095/work/163624964https://hdl.handle.net/1885/733799882We demonstrate the use of coherence gating to resolve particle positions and forces in the axial direction. High depth resolvability (axial) and weak optical force (10-15 N) measurements in an optical trapping system is achieved.enResolving inter-particle position and optical forces along the axial direction using optical coherence gating201110.1364/boda.2011.jtua3185087604058