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Octave-spanning supercontinuum is generated in chalcogenide, Ge23Sb7S70, waveguides pumped at 1550 nm. The 2μm side is subsequently amplified in a Thulium-doped fiber amplifier and utilized for second-harmonic generation (SHG). The generated signal has 55 dB of signal-to-noise ratio.
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.
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 self-sustained Radiation-Pressure driven MEMS ring OptoMechanical Oscillator (RP-OMO) attaining an anchor-loss-limited mechanical Q-factor of 10,400 in vacuum has posted a best-to-date phase noise of −102 dBc/Hz at a 1 kHz offset from a 74 MHz carrier, more than 15 dB better than the best previously published mark [1]. While enhanced optical and mechanical Q both serve to lower the optical threshold...
We present wafer-scale processed optomechanical oscillators with low threshold power (<120μW) owing to high Qoptical = 5.3M, with phase noise of −110dBc/Hz (10kHz offset, 18.6MHz carrier). Phase noise is modeled, and measured vs. Qoptical and Qmechanical.
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