Light propagation in photonic crystal superprisms

Toshihiko Baba; Takashi Matsumoto

doi:10.1117/12.530811

9 July 2004 Light propagation in photonic crystal superprisms

Toshihiko Baba, Takashi Matsumoto

Proceedings Volume 5360, Photonic Crystal Materials and Devices II; (2004) https://doi.org/10.1117/12.530811
Event: Integrated Optoelectronic Devices 2004, 2004, San Jose, CA, United States

Abstract

The superprism is known as a highly dispersive phenomenon in photonic crystals, which is expected to realize a narrow band filter, beam deflector, dispersion compensator, etc. Thus far, its large angular dispersion has been theoretically discussed worldwide through the dispersion surface analysis. In general, however, incidence of a finite width beam to a photonic crystal excites a wide angular spectrum of Bloch waves, which leads to a significant beam divergence. The dispersion surface analysis including such a property indicates that a large angular dispersion and a high quality beam propagation are achieved simultaneously under some limited conditions for incident angles, beam widths and wavelength range. A high resolution will be possible, but the length of the photonic crystal required is of cm to 10 cm order and beam width of 100 micron order. To solve these problems, we proposed a k-vector super-prism, which utilizes a large angular dispersion of k-vector and an angled output end of the photonic crystal. In this prism, the length of the PC is significantly shortened to 100 micron order with maintaining a high resolution. In addition, latitudes for the beam width and wavelength range are greatly expanded, so the butt-joint of a singlemode fiber and operation over C- to L bands will be possible. The FDTD simulation demonstrates the light propagation, which agrees with these expectations, but also showed some peculiar light diffraction, which should be cared in designing a high efficiency filter.

Citation Download Citation

Toshihiko Baba and Takashi Matsumoto "Light propagation in photonic crystal superprisms", Proc. SPIE 5360, Photonic Crystal Materials and Devices II, (9 July 2004); https://doi.org/10.1117/12.530811

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
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Prisms

Dispersion

Photonic crystals

Beam propagation method

Collimation

Finite-difference time-domain method

Light wave propagation

Show All Keywords

Keywords/Phrases

Search In:

Publication Years