Towards high spatial resolution magnetic imaging with a compact practical quantum diamond microscope
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866916475250409472 |
|---|---|
| author | Rietwyk, Kevin J. Shaji, Alex Robertson, Islay O. Healey, Alexander J. Singh, Priya Scholten, Sam C. Reineck, Philipp Broadway, David Tetienne, Jean-Philippe |
| author_facet | Rietwyk, Kevin J. Shaji, Alex Robertson, Islay O. Healey, Alexander J. Singh, Priya Scholten, Sam C. Reineck, Philipp Broadway, David Tetienne, Jean-Philippe |
| contents | Widefield quantum diamond microscopy is a powerful technique for imaging magnetic fields with high sensitivity and spatial resolution. However, current methods to approach the ultimate spatial resolution ($<500\,$nm) are impractical for routine use as they require time-consuming fabrication or transfer techniques to precisely interface the diamond sensor with the sample to be imaged. To address this challenge, we have designed a co-axial sensor holder that enables simple, repeatable sensor-sample interfacing while being compatible with high numerical aperture (NA) optics. With our new design we demonstrate low standoffs $<500\,$nm with a millimetre sized sensor. We also explore the relationship between spatial resolution and NA spanning from 0.13 to 1.3. The spatial resolution shows good agreement with the optical diffraction limit at low NA but deviates at high NA, which is shown to be due to optical aberrations. Future improvements to our design are discussed, which should enable magnetic imaging with $<500\,$nm resolution in an accessible, easy-to-use instrument. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_15319 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Towards high spatial resolution magnetic imaging with a compact practical quantum diamond microscope Rietwyk, Kevin J. Shaji, Alex Robertson, Islay O. Healey, Alexander J. Singh, Priya Scholten, Sam C. Reineck, Philipp Broadway, David Tetienne, Jean-Philippe Mesoscale and Nanoscale Physics Widefield quantum diamond microscopy is a powerful technique for imaging magnetic fields with high sensitivity and spatial resolution. However, current methods to approach the ultimate spatial resolution ($<500\,$nm) are impractical for routine use as they require time-consuming fabrication or transfer techniques to precisely interface the diamond sensor with the sample to be imaged. To address this challenge, we have designed a co-axial sensor holder that enables simple, repeatable sensor-sample interfacing while being compatible with high numerical aperture (NA) optics. With our new design we demonstrate low standoffs $<500\,$nm with a millimetre sized sensor. We also explore the relationship between spatial resolution and NA spanning from 0.13 to 1.3. The spatial resolution shows good agreement with the optical diffraction limit at low NA but deviates at high NA, which is shown to be due to optical aberrations. Future improvements to our design are discussed, which should enable magnetic imaging with $<500\,$nm resolution in an accessible, easy-to-use instrument. |
| title | Towards high spatial resolution magnetic imaging with a compact practical quantum diamond microscope |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2407.15319 |