Long-Range Slot Hybrid Surface Plasmon Waveguide With Long Propagation Distance and Tight Mode Confinement

ABSTRACT

A long-range hybrid slot surface plasmon waveguiding structure that is capable of achieving ultra-small mode confinement and a long propagation distance simultaneously is proposed in this article. In comparison with the conventional long-range hybrid surface plasmon waveguide, the proposed waveguide can provide one order smaller mode area and a longer propagation distance by introducing a through-slot in the gap region. Meanwhile, the practical fabrication errors have little influence over mode properties of the waveguide. These results indicate that our designed waveguide can be a potential candidate for high-performance nanophotonic circuit and device.

KEYWORDS:

• Surface plasmon wavegide
• mode area
• propagation distance

Additional information

Notes on contributors

Ying Shi

Ying Shi received a BS degree in computer science and technology and an MS degree in navigation, guide and control from Air Force Engineering University, Xi’an City, China, in 2008 and 2010, respectively. She is currently a PhD student at Air Force Engineering University. Her current research interests include plasmonics and nolinear optics.

Kai Zheng

Kai Zheng received a BS degree in electronic and information engineering and an MS degree in electromagnetic field and microwave technology from Northwestern Polytechnical University, Xi’an City, China, in 2008 and 2012, respectively. He is currently a PhD student at the School of Electronics and Information at Northwestern Polytechnical University. His current research interests include plasmonics, nanolasers, and optical sensors.

Yi Su

Yi Su received a BS degree in electronic and information engineering and an MS degree in electromagnetic field and microwave technology from Northwestern Polytechnical University, Xi’an City, China, in 2009 and 2012, respectively. He is currently an engineer at Beijing Institute of Remote-Sense Equipment, Beijing City, China. His current research interests include nanolasers and optical circuits.

Ying Wang

Ying Wang is currently a professor with Air Force Engineering University, Xi’an City, China. She received a PhD in 2003 from the School of Management, Xi'an Jiaotong University. Her current research interests include microwave instrumentation, microwave communication, and electromagnetic compatibility.