Highly efficient interfacing of guided plasmons and photons in nanowires

Successful exploitations of strongly confined surface plasmon-polaritons critically rely on their efficient and rapid conversion to lossless channels. We demonstrate a simple, robust, and broad-band butt-coupling technique for connecting a metallic nanowire and a dielectric nanofiber. Conversion efficiencies above 95% in the visible and close to 100% in the near infrared can be achieved with realistic parameters. Moreover, by combining butt-coupling with nanofocusing, we propose a broad-band high-throughput near-field optical microscope.Comment: 5 figure

Gold, copper, silver and aluminum nanoantennas to enhance spontaneous emission

We compute the decay rates of emitters coupled to spheroidal nanoantennas made of gold, copper, silver, and aluminum. The spectral position of the localized surface plasmon-polariton resonance, the enhancement factors and the quantum efficiency are investigated as a function of the aspect ratio, background index and the metal composing the nanoantenna. While copper yields results similar to gold, silver and aluminum exhibit different performances. Our results show that with a careful choice of the parameters these nanoantennas can enhance emitters ranging from the UV to the near-IR spectrum.Comment: 7 pages, 10 figure

Quantum theory of photonic crystal polaritons

We formulate a full quantum mechanical theory of the interaction between electromagnetic modes in photonic crystal slabs and quantum well excitons embedded in the photonic structure. We apply the formalism to a high index dielectric layer with a periodic patterning suspended in air. The strong coupling between electromagnetic modes lying above the cladding light line and exciton center of mass eigenfunctions manifests itself with the typical anticrossing behavior. The resulting band dispersion corresponds to the quasi-particles coming from the mixing of electromagnetic and material excitations, which we call photonic crystal polaritons. We compare the results obtained by using the quantum theory to variable angle reflectance spectra coming from a scattering matrix approach, and we find very good quantitative agreement.Comment: Proceedings of the "8th Conference on Optics of Excitons in Confined Systems" (OECS-8), 15-17 September 2003, Lecce (Italy

Coherent interaction of a metallic structure with a single quantum emitter: from super absorption to cloaking

We provide a general theoretical platform based on quantized radiation in absorptive and inhomogeneous media for investigating the coherent interaction of light with metallic structures in the immediate vicinity of quantum emitters. In the case of a very small metallic cluster, we demonstrate extreme regimes where a single emitter can either counteract or enhance particle absorption by three orders of magnitude. For larger structures, we show that an emitter can eliminate both scattering and absorption and cloak a plasmonic antenna. We provide physical interpretations of our results and discuss their applications in active metamaterials and quantum plasmonics

TANGGUNG JAWAB PIDANA PENGEMUDI KENDARAAN YANG MENGAKIBATKAN KEMATIAN DALAM KECELAKAAN LALU LINTAS

Penelitian ini dilakukanb untuk mengetahui bagaimanakah tanggung jawab pidana pengemudi kendaraan yang mengakibatkan kematian dalam kecelakaan lalu lintas dan apakah tindak pidana kecelakaan lalu lintas yang mengakibatkan kematian dimasa yang akan datang dalam pembentukan KUHP Nasional masih perlu dipertahankan.  Dengan menggunakan metode penelitian kepustakaan dapat disimpulkan: 1. Tanggung jawab pidana pengemudi kendaraan yang mengakibatkan kematian dalam kecelakaan lalu lintas dalam Pasal 359 Kitab Undang-Undang Hukum Pidana adalah pidana penjara paling lama lima tahun atau kurungan paling lama satu tahun, dapat juga diberikan sanksi pidana sebagaimana diatur dalam Pasal 310 Undang-Undang No. 22 Tahun 2009 Tentang Lalu Lintas dan Angkutan Jalan. 2. Dalam pembentukan KUHP Nasional, tindak pidana kecelakaan lalu lintas yang mengakibatkan kematian masih sangat perlu diatur sebagai perbuatan yang pelakunya pengemudi kendaraan dapat mempertanggungjawabkannya secara pidana. Keywords: kecelakaan lalu lintas, tanggung jawab pidan

Large suppression of quantum fluctuations of light from a single emitter by an optical nanostructure

We investigate the reduction of the electromagnetic field fluctuations in resonance fluorescence from a single emitter coupled to an optical nanostructure. We find that such hybrid system can lead to the creation of squeezed states of light, with quantum fluctuations significantly below the shot noise level. Moreover, the physical conditions for achieving squeezing are strongly relaxed with respect to an emitter in free space. A high degree of control over squeezed light is feasible both in the far and near fields, opening the pathway to its manipulation and applications on the nanoscale with state-of-the-art setups.Comment: 10 pages, 5 figure

Single-Photon Imaging and Efficient Coupling to Single Plasmons

We demonstrate strong coupling of single photons emitted by individual molecules at cryogenic and ambient conditions to individual nanoparticles. We provide images obtained both in transmission and reflection, where an efficiency greater than 55% was achieved in converting incident narrow-band photons to plasmon-polaritons (plasmons) of a silver nanoparticle. Our work paves the way to spectroscopy and microscopy of nano-objects with sub-shot noise beams of light and to triggered generation of single plasmons and electrons in a well-controlled manner