Detection of mode conversion in a subwavelength thin film heterostructure

J. Manzanares-Martinez

doi:10.1117/12.2236500

26 September 2016 Detection of mode conversion in a subwavelength thin film heterostructure

J. Manzanares-Martinez

Proceedings Volume 9929, Nanostructured Thin Films IX; 99290S (2016) https://doi.org/10.1117/12.2236500
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

An asymmetric propagation in a photonic diode-like heterostructure is studied theoretically. The heterostructure is composed by two distinct planar waveguides with low and high refractive indices, respectively. The physical mechanism exploited to obtain an asymmetric propagation is based on the matching of eigenmodes. Considering the Transversal Magnetic (TM) polarization, it is found that at a specific frequency on the low index waveguide only the first even mode (TM_e1) exists while for the high index waveguide two modes are allowed, the TM_e1 and the first odd mode (TM_o1). We report an asymmetric transmission through the junction of waveguides. On the one hand, it is observed that the TM_e1 mode is able to propagate from the low into the high index waveguide and vice-versa. On the other hand, the TM_o1 mode cannot pass from the high into the low index waveguide.

Citation Download Citation

J. Manzanares-Martinez "Detection of mode conversion in a subwavelength thin film heterostructure", Proc. SPIE 9929, Nanostructured Thin Films IX, 99290S (26 September 2016); https://doi.org/10.1117/12.2236500

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available