Wavelength tunable properties of the perpendicular dual-grating guided-mode resonance filters

Yonggang Wu; Zihuan Xia; Zhenhua Wang; Renchen Liu; Pinglin Tang; Gang Lv; Heyun Wu

doi:10.1117/12.928686

15 October 2012 Wavelength tunable properties of the perpendicular dual-grating guided-mode resonance filters

Yonggang Wu, Zihuan Xia, Zhenhua Wang, Renchen Liu, Pinglin Tang, Gang Lv, Heyun Wu

Proceedings Volume 8456, Nanophotonic Materials IX; 84560A (2012) https://doi.org/10.1117/12.928686
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

Abstract

Perpendicular dual-grating (PDG) guided-mode resonance filters were constructed by placing two identical one-dimensional waveguide gratings close to and their grooves perpendicular to each other with a nano air gap between them. Multilayer waveguide theory was used to estimate the split of the resonant reflection peaks corresponding to the TE and TM modes, and the rigorous coupled wave analysis (RCWA) was used to investigate the resonant wavelength, the linewidth of the resonant peaks, and electric field intensity distribution in the filter structures. The filters present identical spectral characteristics for normally incident wave with arbitrary polarization. The TM₀¹ and the TM₀¹ modes are found displaying the greatest wavelength shift for the air gap variation between 0 and 100 nm, and 100 nm and 1000 nm，respectively. The coupling between the TE and TM modes is much greater in the g/w/a/w/g structure than that in the w/g/a/g/w structure, since there is no space between the two waveguide layers in the former. The resonant peaks of the TM₀¹ mode for the one-dimensional PDG g/w/a/w/g structure exhibit narrower width compared with those for the two-dimensional g/w/a/w/g structure. In addtion, the horizontal shift between the two gratings does not influence the measured spectra, although it will certainly have great effect on the resonant peak width if the measurement were carried out by the guided-mode filters where the two gratings are two dimensional.

Citation Download Citation

Yonggang Wu, Zihuan Xia, Zhenhua Wang, Renchen Liu, Pinglin Tang, Gang Lv, and Heyun Wu "Wavelength tunable properties of the perpendicular dual-grating guided-mode resonance filters", Proc. SPIE 8456, Nanophotonic Materials IX, 84560A (15 October 2012); https://doi.org/10.1117/12.928686

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Polarization

Waveguides

Optical filters

Refractive index

Optical filtering

Modulation

Reflection

Show All Keywords

Keywords/Phrases

Search In:

Publication Years