Special Section on Nanophotonics in Europe

Photonic energy lifters and event horizons with time-dependent dielectric structures

[+] Author Affiliations
Zeno Gaburro

Dipartimento di Fisica, Universita degli Studi di Trento, via Sommarive 14, Povo, Trento 38100 Italy

J. Nanophoton. 2(1), 021853 (December 2, 2008). doi:10.1117/1.3054303
History: Received August 4, 2008; Revised November 24, 2008; Accepted November 25, 2008; December 2, 2008; Online December 02, 2008
Text Size: A A A

Abstract

Novel photonic devices, based on time-dependent dielectrics, to shift the optical frequency, may be conceived from two complementary principles, Doppler shift and time refraction, and possibly realized as as single cavities or as Coupled Resonator Optical Waveguides (CROWs). Simulations with the finite-difference time-domain method bore out these possibilities and also provided design rules. Preliminary experiments, limited to a pulsed excitation (without any frequency shift) of whispering gallery modes in a LiNbO3 whispering gallery disk resonator in a full fiber-optics setup, the first experiments of an optical whispering-gallery resonator functioning in the steady-pulsed regime, led to a consistent Q-factor measurement between CW and pulsed ringdown characterization. The repetition rate was tuned to an integer submultiple 1/N of the free spectral range of the resonator. The output rate of the resonator was equal to the input rate multiplied by N, thereby showing functionality as a frequency multiplier. The impact of nonlinearity and of dispersion was minimized by the low power level and the limited bandwidth of pulses.

© 2008 Society of Photo-Optical Instrumentation Engineers

Citation

Zeno Gaburro
"Photonic energy lifters and event horizons with time-dependent dielectric structures", J. Nanophoton. 2(1), 021853 (December 2, 2008). ; http://dx.doi.org/10.1117/1.3054303


Figures

Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.