11:15 〜 11:30
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[15a-A305-9] Functional comparison of scalar and vectorial vortex filtering for all-directional
edge-enhanced microscopy
キーワード：optical vortex, q-plate, edge-enhanced microscopy
Recently, the 4f system containing a vortex filter has been used to perform all-directional edge
enhancement of phase-amplitude object (PAO) such as complex biological specimens. The vortex filters are generally of two types, the scalar vortex filtering (SVF) generates spiral phase e^iθ and vectorial vortex filtering (VVF) generates opposite directional spiral phase e^±iθ depending on direction of input circular polarization. The biological specimens containing both phase object (PO) and amplitude object (AO) can be observed using SVF and VVF. However, few detailed studies have compared the functional differences between SVF and VVF experimentally. In this report, we will show that VVF has a significant advantage over SVF because of its potential to provide a separate and distinct edge for PO and AO in PAO while SVF contains interference on the edges of PO and AO in PAO.
enhancement of phase-amplitude object (PAO) such as complex biological specimens. The vortex filters are generally of two types, the scalar vortex filtering (SVF) generates spiral phase e^iθ and vectorial vortex filtering (VVF) generates opposite directional spiral phase e^±iθ depending on direction of input circular polarization. The biological specimens containing both phase object (PO) and amplitude object (AO) can be observed using SVF and VVF. However, few detailed studies have compared the functional differences between SVF and VVF experimentally. In this report, we will show that VVF has a significant advantage over SVF because of its potential to provide a separate and distinct edge for PO and AO in PAO while SVF contains interference on the edges of PO and AO in PAO.