| Autor: |
Asgari, Pegah, Yüksel, Itir Bakiş Dogru, Blab, Gerhard A., Gerritsen, Hans C., Mosk, Allard P. |
| Rok vydání: |
2022 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
We present an interferometric spectral-domain optical coherence tomography microscopy setup to detect structural changes using interference of light reflected from different interfaces of the sample. We induce a reproducible nanometer-scale size change in dye-doped 10$~\mu$m polystyrene microspheres by the release of Stokes shift energy of dye molecules inside the microspheres, excited by a modulated 532-nm laser. The resulting optical path length difference was measured with a sensitivity of 0.4$~pm/\sqrt{Hz}$ limited by photodetection noise, and reveals elastic as well as inelastic responses, which opens up possibilities for measuring the response of cell-sized biological objects. |
| Databáze: |
arXiv |
| Externí odkaz: |
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