Volume 100, Number 4, November 2012
|Number of page(s)||5|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||29 November 2012|
Modulated reflectivity via a symmetrical metal cladding ferrofluids core waveguide chip
1 Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Hohai University Changzhou, Jiangsu, 213022, China
2 Department of Physics, State Key Lab of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China
3 The Institute for Quantum Science and Engineering and Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA
Received: 24 August 2012
Accepted: 31 October 2012
We report results of experiments and calculations that help to clarify the underlying physics of the light matter interaction in a symmetrical metal cladding ferrofluids core waveguide chip. Without applying external magnetic field, the observed tunable reflectivity confirms the formation of regular particle aggregates in the ferrofluids under the excited ultrahigh-order modes. A tentative explanation is proposed based on the competition between the optical trapping effect and the Soret effect as the field intensity increases.
PACS: 47.65.Cb – Magnetic fluids and ferrofluids / 42.82.Et – Waveguides, couplers, and arrays
© EPLA, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.