| Zugriffsnummer | 36749 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Experimental setup for the direct measurement of a light induced attractive force between two metal bodies |
| Autor(in); Institution |
Nies, Daniel; 5.1, Oberflächenmesstechnik, PTB-Braunschweig
Bütefisch, Sebastian; 5.1, Oberflächenmesstechnik, PTB-Braunschweig
Naparty, Dirk; 5.1, Oberflächenmesstechnik, PTB-Braunschweig
Wurm, Matthias; 4.2, Bild- und Wellenoptik, PTB-Braunschweig
Belai, Oleg V.; Russian Academy of Science, Siberian Branch, Institute of Automation and Electrometry, Novosibirsk, RUSSIA
Shapiro, David A.; Russian Academy of Science, Siberian Branch, Institute of Automation and Electrometry, Novosibirsk, RUSSIA
Nesterov, Vladimir; 5.1, Oberflächenmesstechnik, PTB-Braunschweig
|
| Quelle/Jahr | Optical trapping and optical micromanipulation XIII:(2016), 99222L-1 - 99222L-6 |
| Schriftenreihe | Proceedings of SPIE: 9922 |
| Herausgeber(in) |
Dholakia, Kishan
|
| ISBN | 978-1-5106-0235-9 |
| DOI | |
| Verlag | Bellingham, Wash.: SPIE |
| Konferenzangaben | Spie Optics + Photonics 2016, San Diego, Calif., 28, August - 01, September, 2016, USA |
| Freie Schlagworte | Subwavelength structures ; Surface plasmons ; Optical manipulation ; Light-induced force ; Negative light pressure ; Nanonewton force |
| Zusammenfassung | For numerous applications in science and engineering, technologies for manipulating macro-, micro-, and nano-objects by means of laser light are of high interest. In recent papers, a new, negative light pressure was predicted which acts on metallic bodies if these are separated by a subwavelength slit. This force arises from surface plasmon polariton interaction between the bodies and could be used to manipulate metallic nano-, micro-, and macro-objects. This is promising, since metallic objects from several hundred nanometers upwards are practically inaccessible to most manipulation technologies. However, an experimental measurement of this force has not been carried out yet. First theoretical calculations showed that, for example, laser light (λ = 1550 nm, P = 100 mW) which is fully absorbed in a slit (slit width = λ/2) would generate a force of about 1 nN. This would be significantly larger than the radiation pressure of the same light, which amounts to about 0.35 nN only. We present an experimental setup to measure the light-induced force with the nanonewton force facility of the Physikalisch-Technische Bundesanstalt (PTB). The presentation of the experimental setup focuses on the mandatory upgrades of the facility, on the measuring method and on preliminary results. In order to improve the theoretical description of the light-induced force, we report new explicit analytical expressions of this force as well as the results of numerical calculations, for both ideal as well as realistic conditions. The numerical results are in very good agreement with the analytical expressions. |
Zitierung
Nies, D., Bütefisch, S., Naparty, D., Wurm, M., Belai, O. V., Shapiro, D. A., & Nesterov, V. (2016). Experimental setup for the direct measurement of a light induced attractive force between two metal bodies. Spie Optics + Photonics 2016, San Diego, Calif., 28, August - 01, September, 2016, USA. https://doi.org/10.1117/12.2235901