Ultra-long photonic nanojet formed by dielectric cubes

Cheng-Yang Liu; Li-Jen Chang

doi:10.1117/12.2177557

1 May 2015 Ultra-long photonic nanojet formed by dielectric cubes

Cheng-Yang Liu, Li-Jen Chang

Proceedings Volume 9516, Integrated Optics: Physics and Simulations II; 951610 (2015) https://doi.org/10.1117/12.2177557
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

The capability of generating photonic nanojets using dielectric cubes working in the visible light region is introduced and investigated numerically. The simulation of electric intensity distributions for a dielectric cube is performed using the finite-difference time-domain method. The focusing characteristic of the photonic nanojets is evaluated in terms of both focal length and transversal full width at half maximum along both transversal directions. Moreover, the ultra-long photonic nanojet is studied by theoretical calculations for a dielectric cube. By changing the dimension of the dielectric cube, it has been demonstrated that the focus point is moved from inside to outside the cube with a high intensity nanojet. The super resolution imaging of the dielectric cube can be expected from the focal length and the maximum intensity. The photonic nanojet enhancement and super resolution technique could be functional for the imaging of nanoscale targets on substrates and films.

Citation Download Citation

Cheng-Yang Liu and Li-Jen Chang "Ultra-long photonic nanojet formed by dielectric cubes", Proc. SPIE 9516, Integrated Optics: Physics and Simulations II, 951610 (1 May 2015); https://doi.org/10.1117/12.2177557

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