Enhanced spontaneous emission inside hyperbolic metamaterials.

Hyperbolic metamaterials can enhance spontaneous emission, but the radiation-matter coupling is not optimized if the light source is placed outside such media. We demonstrate a 3-fold improvement of the Purcell factor over its outer value and a significant enlargement in bandwidth by including the emitter within a Si/Ag periodic multilayer metamaterial. To extract the plasmonic modes of the structure into the far field we implement two types of 1D grating with triangular and rectangular profile, obtaining a 10-fold radiative enhancement at visible frequencies.

[1]  E. Haller,et al.  Ultrafast direct modulation of a single-mode photonic crystal nanocavity light-emitting diode , 2011, 2012 Conference on Lasers and Electro-Optics (CLEO).

[2]  Zubin Jacob,et al.  Broadband Purcell effect: Radiative decay engineering with metamaterials , 2009, 0910.3981.

[3]  A. A. Studna,et al.  Dielectric functions and optical parameters of Si, Ge, GaP, GaAs, GaSb, InP, InAs, and InSb from 1.5 to 6.0 eV , 1983 .

[4]  G. W. Ford,et al.  Electromagnetic interactions of molecules with metal surfaces , 1984 .

[5]  P. Berini.  Long-range surface plasmon polaritons , 2009 .

[6]  Zongfu Yu,et al.  Large single-molecule fluorescence enhancements produced by a bowtie nanoantenna , 2009 .

[7]  B. Hecht,et al.  Principles of nano-optics , 2006 .

[8]  S. Turner,et al.  Zero-Mode Waveguides for Single-Molecule Analysis at High Concentrations , 2003, Science.

[9]  Pierre Berini,et al.  Theory of noise in high-gain surface plasmon-polariton amplifiers incorporating dipolar gain media. , 2011, Optics express.

[10]  E. Purcell.  Spontaneous Emission Probabilities at Radio Frequencies , 1995 .

[11]  Reinhard Guckenberger,et al.  High-resolution imaging of single fluorescent molecules with the optical near-field of a metal tip. , 2004, Physical review letters.

[12]  W. Barnes,et al.  Fluorescence near interfaces: The role of photonic mode density , 1998 .

[13]  R. W. Christy,et al.  Optical Constants of the Noble Metals , 1972 .

[14]  S. Maier.  Plasmonics: Fundamentals and Applications , 2007 .

[15]  Viktor Podolskiy,et al.  Focus issue: hyperbolic metamaterials. , 2013, Optics express.

[16]  E. Purcell,et al.  Resonance Absorption by Nuclear Magnetic Moments in a Solid , 1946 .

[17]  Takashi Mukai,et al.  Surface-plasmon-enhanced light emitters based on InGaN quantum wells , 2004, Nature materials.

[18]  R. C. Thompson,et al.  Optical Waves in Layered Media , 1990 .

[19]  Eric E Fullerton,et al.  Enhancing spontaneous emission rates of molecules using nanopatterned multilayer hyperbolic metamaterials. , 2014, Nature nanotechnology.

[20]  Alexandre G. Brolo,et al.  Plasmonics for future biosensors , 2012, Nature Photonics.