Depth-filtering in common-path digital holographic microscopy
- We demonstrate a method to select different layers in a sample using a low coherent gating approach combined with a stable common-path quantitative phase imaging microscopy setup. The depth-filtering technique allows us to suppress the negative effects generated by multiple interference patterns of overlaying optical interfaces in the sample. It maintains the compact and stable common-path setup, while enabling images with a high phase sensitivity and acquisition speed. We use a holographic microscope in reflective geometry with a non-tunable low coherence light source. First results of this technique are shown by imaging the hardware layer of a standard micro-controller through its thinned substrate.
| Author: | Markus FinkeldeyGND, Lena GöringGND, Carsten BrennerORCiDGND, Martin HofmannGND, Nils Christopher GerhardtGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-88452 |
| DOI: | https://doi.org/10.1364/OE.25.019398 |
| Parent Title (English): | Optics express |
| Publisher: | Optica Publishing Group |
| Place of publication: | Washington, DC |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2022/04/25 |
| Date of first Publication: | 2017/08/07 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Tag: | Open Access Fonds Buried interfaces; Confocal microscopy; Digital holography; Microscopy; Phase measurement |
| Volume: | 25 |
| Issue: | 16 |
| First Page: | 19398 |
| Last Page: | 19407 |
| Note: | Article Processing Charge funded by the Deutsche Forschungsgemeinschaft (DFG) and the Open Access Publication Fund of Ruhr-Universität Bochum. |
| Institutes/Facilities: | Lehrstuhl für Photonik und Terahertztechnologie |
| Dewey Decimal Classification: | Technik, Medizin, angewandte Wissenschaften / Elektrotechnik, Elektronik |
| open_access (DINI-Set): | open_access |
| faculties: | Fakultät für Elektrotechnik und Informationstechnik |
| Licence (English): |  Creative Commons - CC BY 4.0 - Attribution 4.0 International |
