Surface emitting laser based on random photonic crystals

Anderson localization (AL), the localization phenomenon of waves in random media, was theoretically predicted for electrons in a random potential in 1958 and still has been a recondite puzzle today. Stemming from interferences of multiply scattered waves, the principle is applicable to whole quantum as well as classical waves. Although experimental attempts toward AL of light had been performed in fully random structures such as aggregates of fine grains, it had been difficult to achieve because it demands materials with both extremely high scattering strength and low absorption losses. It was predicted in 1987 that localization may be more achievable in a randomized photonic crystal which supports a wide photonic band gap. However, AL of light is not yet experimentally exhibited except by far-field indirect observations in one- and two-dimensional structures. Here we show the first direct near-field observation of two-dimensional AL in random photonic crystal lasers by use of SNOM (Scanning Near-field Optical Microscope). We fabricated two-dimensional random photonic crystal lasers to which structural randomness is introduced by dislocating the positions of air holes to random directions. We show that only slight amount of randomness induces the extended Slow Bloch Modes to be Anderson localized, but too much randomness releases the light confinement. In addition, by performing FDTD computational method we confirm the experimental results to be consistent with theoretical prospects. Our results directly expose the detailed appearance of two-dimensional Anderson localized light first time ever.

[1]  Christian Seassal,et al.  Surface emitting microlaser based on 2D photonic crystal rod lattices. , 2009, Optics express.

[2]  Philip W. Anderson,et al.  The question of classical localization A theory of white paint , 1985 .

[3]  P. Marko,et al.  ABSENCE OF DIFFUSION IN CERTAIN RANDOM LATTICES , 2008 .

[4]  M. Segev,et al.  Transport and Anderson localization in disordered two-dimensional photonic lattices , 2007, Nature.

[5]  Peter Ingo Borel,et al.  Slow Light in Photonic Crystal Waveguides , 2018, Slow Light.

[6]  Patrick Sebbah,et al.  Selective Excitation of Localized Modes in Active Random Media , 2001 .

[7]  John,et al.  Strong localization of photons in certain disordered dielectric superlattices. , 1987, Physical review letters.

[8]  L. Kuipers,et al.  The effect of higher order dispersion on slow light propagation in photonic crystal waveguides , 2006, 2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference.

[9]  M. Notomi,et al.  Extremely large group-velocity dispersion of line-defect waveguides in photonic crystal slabs. , 2001, Physical review letters.

[10]  Marco Gnan,et al.  Efficient coupling into slow-light photonic crystal channel guides using photonic crystal tapers. , 2007, Optics express.

[11]  Dirk Englund,et al.  Ultrafast photonic crystal nanocavity laser , 2006 .

[12]  T. Asano,et al.  High-Q photonic nanocavity in a two-dimensional photonic crystal , 2003, Nature.

[13]  T. Krauss,et al.  Real-space observation of ultraslow light in photonic crystal waveguides. , 2005, Physical review letters.

[14]  Frank Vollmer,et al.  Random high-Q cavities in disordered photonic crystal waveguides , 2007 .

[15]  Isabelle Sagnes,et al.  Light transport regimes in slow light photonic crystal waveguides , 2009 .

[16]  Soon-Hong Kwon,et al.  Photonic bandedge lasers in two-dimensional square-lattice photonic crystal slabs , 2003 .

[17]  P. Lalanne,et al.  Slow-wave effect and mode-profile matching in photonic crystal microcavities , 2005 .

[18]  B. Ilic,et al.  Experimental observation of strong photon localization in disordered photonic crystal waveguides. , 2007, Physical review letters.

[19]  Pedro David Garcia,et al.  Cavity Quantum Electrodynamics with Anderson-Localized Modes , 2010, Science.

[20]  S. John.  Electromagnetic absorption in a disordered medium near a photon mobility edge , 1984 .

[21]  Roberto Righini,et al.  Localization of light in a disordered medium , 1997, Nature.

[22]  E. Jalaguier,et al.  InP-based two-dimensional photonic crystal on silicon: In-plane Bloch mode laser , 2002 .