Photonic Crystal Point-Shift Nanolasers With and Without Nanoslots—Design, Fabrication, Lasing, and Sensing Characteristics

High frequency oscillation in photonic crystal nanolasers

We observed modulated oscillations in lasers of up to 130 GHz by conducting frequency domain measurements on photonic crystal lasers with built-in saturable absorbers. This is an example of how the small volumes of photonic crystal lasers lead to increases in the internal modulation frequencies and enables dramatic improvements of the laser modulation rate. © 2004 American Institute of Physics....

Photonic crystal horizontally slotted nanobeam cavity for silicon-based nanolasers.

We theoretically propose and investigate a TM-polarized one-dimensional photonic crystal nanocavity with a horizontal SiO2 slot on a suspended silicon nanobeam via the three-dimensional finite-element method. The ultrahigh quality factor and ultrasmall effective mode volume of 1.5×10(7) and 0.176 half-wavelength cubic of the horizontally SiO2-slotted nanocavity show strong possibilities for rea...

Higher-order photon correlations in pulsed photonic crystal nanolasers

Quantum dot photonic-crystal-slab nanocavities: Quality factors and lasing

Emission linewidths of quantum dot photonic-crystal-slab nanocavities are measured as a function of temperature and fabrication parameters with low-power and high-power, cw and pulsed, nonresonant excitation. The cavity linewidth is dominated by the absorption of the ensemble of quantum dots having a density of 400/ m2; above the absorption edge, the cavity linewidth broadens considerably compa...

Lasing in Dye–Doped Photonic Liquid Crystal Devices

We have investigated the effects of pumping laser’s polarization and incident angles, dye concentration, cell gap, and lasing wavelength on the lasing efficiency of the dye doped cholesteric liquid crystal (CLC) devices. These factors impact the lasing efficiency due to the existence of the photon bleaching and quench in the dye molecules, the competition of the optical gain and loss in the med...