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We experimentally demonstrate greater than 100-fold enhancement of the spontaneous emission rate in an electrically injected nanoscale III–V light emitting diode coupled to a cavity-backed slot antenna.
We experimentally demonstrate 204x spontaneous emission rate enhancement from an electrically-injected nanoLED coupled to a cavity-backed optical slot antenna. This places the spontaneous emission rate on par with the stimulated emission rate.
Interconnects accounts for a significant portion of energy consumption in integrated circuits. Optical interconnects, now widely used to link electronic systems such as servers and top of rack switches in data centers, can potentially reduce the energy consumption of electrical interconnects. However, current state-of-the-art optical links consumes about 100s fJ/b to 1 pJ/b, still much too high for...
The spontaneous emission rate of light emitters has been shown to have strong dependence on their local electromagnetic environment1. Optical antennas exploit this effect and can be used to greatly increase the spontaneous emission rate of a coupled light emitter. There have been several demonstrations of this effect with promising results using dye molecules and Er3+ ions2,3. It is predicted that...
We experimentally demonstrate 200x spontaneous emission rate enhancement from an electrically-injected nanoLED coupled to a cavity-backed optical slot antenna. Such a nanoLED device could be used as a fast, efficient, and nanoscale light source for on-chip optical interconnects.
A self-aligned process is developed to couple monolayer WSe2 (30nm × 300nm) to a silver cavity-backed slot-antenna. Optical emission measurements show 340x enhancement in spontaneous emission. Carrier lifetimes of <1ps are measured by streak camera.
We propose enhancing the rate of spontaneous emission from an electrically injected nanoLED with a cavity backed optical slot antenna. Initial experimental results show 2x higher intensity of light emission with polarization parallel with the antenna mode indicating the presence of spontaneous emission enhancement.
Experimental evidence of enhanced spontaneous emission from InP coupled to an optical antenna is presented. Photoluminescence measurements show a 120x increase in light emission from antenna-coupled devices over bare InP emitters.
A circuit model of a single-element linear optical antenna is presented. It agrees well with FDTD simulations and predicts spreading resistance will ultimately limit the maximum rate enhancement an efficient antenna can achieve to ∼10,000.
We present on an optical antenna based nanoLED that is fabricated directly on top of an InP waveguide. Waveguide coupling efficiency of 70% and directional emission is achieved with a Yagi-Uda antenna structure. By using an epitaxial lift-off process, we show that this device could be integrated directly onto a Silicon-photonics substrate.
We present a 7nm bare InGaAsP quantum well coupled to a gold nanorod. Photoluminescence measurements show an increased spontaneous emission rate of at least 4.5× without sacrificing efficiency.
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