Room-temperature sub-diffraction-limited plasmon laser by total internal reflection.

Plasmon lasers are a new class of coherent optical amplifiers that generate and sustain light well below its diffraction limit. Their intense, coherent and confined optical fields can enhance significantly light-matter interactions and bring fundamentally new capabilities to bio-sensing, data storage, photolithography and optical communications. However, metallic plasmon laser cavities generally exhibit both high metal and radiation losses, limiting the operation of plasmon lasers to cryogenic temperatures, where sufficient gain can be attained. Here, we present a room-temperature semiconductor sub-diffraction-limited laser by adopting total internal reflection of surface plasmons to mitigate the radiation loss, while using hybrid semiconductor-insulator-metal nanosquares for strong confinement with low metal loss. High cavity quality factors, approaching 100, along with strong λ/20 mode confinement, lead to enhancements of spontaneous emission rate by up to 18-fold. By controlling the structural geometry we reduce the number of cavity modes to achieve single-mode lasing.

[1]  G. S. Solomon,et al.  Near-IR subwavelength microdisk lasers , 2008, 0810.2748.

[2]  Fouad Karouta,et al.  Lasing in metal-insulator-metal sub-wavelength plasmonic waveguides. , 2009, Optics express.

[3]  Min Gu,et al.  Five-dimensional optical recording mediated by surface plasmons in gold nanorods , 2009, Nature.

[4]  D. Bergman,et al.  Surface plasmon amplification by stimulated emission of radiation: quantum generation of coherent surface plasmons in nanosystems. , 2003, Physical review letters.

[5]  Duane C. Karns,et al.  Heat-assisted magnetic recording by a near-field transducer with efficient optical energy transfer , 2009 .

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

[7]  Harry A Atwater,et al.  PlasMOStor: a metal-oxide-Si field effect plasmonic modulator. , 2009, Nano letters.

[8]  Ming C. Wu,et al.  Subwavelength Metal-optic Semiconductor Nanopatch Lasers References and Links , 2022 .

[9]  R. Ma,et al.  High-performance nano-Schottky diodes and nano-MESFETs made on single CdS nanobelts. , 2007, Nano letters.

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

[11]  Yeshaiahu Fainman,et al.  Room-temperature subwavelength metallo-dielectric lasers , 2010 .

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

[13]  D. Gramotnev,et al.  Plasmonics beyond the diffraction limit , 2010 .

[14]  Jeffrey N. Anker,et al.  Biosensing with plasmonic nanosensors. , 2008, Nature materials.

[15]  V. Shalaev,et al.  Demonstration of a spaser-based nanolaser , 2009, Nature.

[16]  Yong-Zhen Huang,et al.  Experimental observation of resonant modes in GaInAsP microsquare resonators , 2005, IEEE Photonics Technology Letters.

[17]  W. Cai,et al.  Plasmonics for extreme light concentration and manipulation. , 2010, Nature materials.

[18]  F. Courvoisier,et al.  Multimode resonances in square-shaped optical microcavities. , 2001, Optics letters.

[19]  Roman Kolesov,et al.  Wave–particle duality of single surface plasmon polaritons , 2009 .

[20]  X. Zhang,et al.  A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation , 2008 .

[21]  Xiang Zhang,et al.  Plasmon lasers at deep subwavelength scale , 2009, Nature.

[22]  M. Smit,et al.  Lasing in metallic-coated nanocavities , 2007 .

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

[24]  J. Wiersig Formation of long-lived, scarlike modes near avoided resonance crossings in optical microcavities. , 2006, Physical review letters.

[25]  Susumu Ninomiya,et al.  Optical properties of wurtzite CdS , 1995 .

[26]  M. Lukin,et al.  Generation of single optical plasmons in metallic nanowires coupled to quantum dots , 2007, Nature.

[27]  Jordan A. Katine,et al.  Magnetic recording at 1.5 Pb m −2 using an integrated plasmonic antenna , 2010 .