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Investigation of sub-diffraction mode characteristics in a semiconductor plasmonic nanolaser at telecom wavelength
Published in Khaled Habib, Elfed Lewis, Frontier Research and Innovation in Optoelectronics Technology and Industry, 2018
Nanolasers using surface plasmons (SPASERs) have been demonstrated with different structures, from nanoparticles to nanowires and slab waveguides, and a frequency range of near ultra-violet to mid-infrared and even terahertz (Hill et al., 2007; Oulton, 2008). One of the most promising of the structures reported to realize photonic integration is the plasmonic nanolaser using hybrid semiconductor structures, plane waveguides and quantum wells in active mediums (Costantini et al., 2013; Lee et al., 2017). These nanolasers demonstrated a high modulation bandwidth with a three-dimensional confinement of the optical mode below the diffraction limit and a very small footprint.
Quantum-Dot Nanolasers
Published in Joachim Piprek, Handbook of Optoelectronic Device Modeling and Simulation, 2017
Christopher Gies, Michael Lorke, Frank Jahnke, Weng W. Chow
With present-day nanolaser devices, we are closer than ever to reaching fundamental limits of light–matter interaction in semiconductor systems. Electronic excitations can be generated and used on the level of single excitons [111, 112]. Brought into interaction with a single mode of microresonator, semiconductor nanolasers operate at the transition to the regime of quantum optics, where cavity-QED effects, such as photon blockade, photon-antibunching, and vacuum Rabi oscillations can coexist with lasing in different excitation regimes of the same device [106, 113, 114]. This offers fascinating prospects both from a fundamental and an applied point of view.
Recent progress on the surface finishing of metals and alloys to achieve superhydrophobic surfaces: a critical review
Published in Transactions of the IMF, 2021
Ali Raza Shaikh, Jian Qu, Minchen Zhou, Christian K. Y. Mulbah
The nanosecond laser, also known as nanolaser, is the most common type of q-switched pulsed lasers. The high peak power and short pulse width of this laser make it well suited for a wide range of applications such as LIBS (laser-induced breakdown spectroscopy), marking, and laser design. Recently, He et al.98 used nanosecond laser ablation to create a fine groove mesh and ethanol-assisted low-temperature annealing contributed to an SHS. The maximum WCA was found to be 161° and the surface has ultra-high adhesion. A picosecond laser emits pulses of light at durations ranging from a picosecond to some tens of picoseconds. Hence, it also falls into the category of ultrafast lasers or ultrashort pulse lasers. Long et al.99 prepared SHS on Cu substrate by picosecond laser. Laser-induced periodic pico-second nanostructures were modified with triethoxyoctylsilane, and the maximum WCA was 153.9° ± 3.2° with ultra-high adhesion.