Electric field sensing with high spatial resolution via a charged "flying particle" optically guided inside hollow-core PCF

D. S. Bykov; O. A. Schmidt; T. G. Euser; P. St. J. Russell

doi:10.1117/12.2059015

2 June 2014 Electric field sensing with high spatial resolution via a charged "flying particle" optically guided inside hollow-core PCF

D. S. Bykov, O. A. Schmidt, T. G. Euser, P. St. J. Russell

Author Affiliations +

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 915704 (2014) https://doi.org/10.1117/12.2059015
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

We report an electric field sensor based on a charged microparticle that is optically trapped, and moved to and fro, inside a hollow-core photonic crystal fibre (PCF). Transverse electric fields displace the particle, altering the transmitted optical power. The transmission change is found to be linear with fields in the 0.1-50 kV/m range, with a flat frequency response from 0.01 to ~1 kHz. In a first test, the field pattern near a multi-element electrode was resolved with a spatial resolution of 1 mm. This unique "flying particle" sensor allows electric field mapping over long distances (the lowest loss hollow core PCF has a 3 dB length of ~3 km) and is suitable for inaccessible or harsh environments.

Citation Download Citation

D. S. Bykov, O. A. Schmidt, T. G. Euser, and P. St. J. Russell "Electric field sensing with high spatial resolution via a charged "flying particle" optically guided inside hollow-core PCF", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915704 (2 June 2014); https://doi.org/10.1117/12.2059015

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