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Researchers develop faster,precise silica coating process for quantum dot nanorods
Researchers develop faster silica coating process quantum dot nanorods
2016/7/15
CdSe/CdS core/shell quantum dot nanorods (QDNRs) exhibit anisotropic optical properties. Overcoating QDNRs with silica (SiO2) shells is desirable for protecting the surface of the inorganic core, impa...
Just as the single-crystal silicon wafer forever changed the nature of communication 60 years ago, a group of Cornell researchers is hoping its work with quantum dot solids – crystals made out of crys...
Advances at Oregon State University in manufacturing technology for “quantum dots” may soon lead to a new generation of LED lighting that produces a more user-friendly white light, while using less to...
A Novel Reconfiguration Scheme in Quantum-Dot Cellular Automata for Energy Efficient Nanocomputing
Reconfiguration QCA Nanocomputing Wire Crossing QCA Adder
2014/12/8
Quantum-Dot Cellular Automata (QCA) is currently being investigated as an alternative to CMOS technology. There has been extensive study on a wide range of circuits from simple logical circuits such a...
Transport in a three-terminal graphene quantum dot in the multi-level regime
Transport three-terminal graphene quantum dot the multi-level regime
2012/2/27
We investigate transport in a three-terminal graphene quantum dot. All nine elements of the conductance matrix have been independently measured. In the Coulomb blockade regime accurate measurements of...
A GaSb/GaAs quantum-dot light-emitting diode (QD LED) with a single GaSb QD layer is investigated in this paper. The room-temperature photoluminescence (PL) peak blue shift with increasing excitation ...
Attojoule all-optical switching with a single quantum dot
Attojoule all-optical single quantum dot Quantum Physics
2011/8/17
Abstract: We experimentally investigate the dynamic nonlinear response of a single quantum dot (QD) strongly coupled to a photonic crystal cavity-waveguide structure. The temporal response is measured...
Ultrafast photon-photon interaction in a strongly coupled quantum dot-cavity system
photon-photon interaction coupled quantum dot-cavity system two weak light beams Quantum Physics
2011/8/17
Abstract: We study dynamics of the interaction between two weak light beams mediated by a strongly coupled quantum dot-photonic crystal cavity system. First, we perform all optical switching of a weak...
Strain-tuning of quantum dot optical transitions via laser-induced surface defects
Strain-tuning quantum dot optical transitions laser-induced surface defects
2011/8/17
Abstract: We discuss the fine-tuning of the optical properties of self-assembled quantum dots by the strain perturbation introduced by laser-induced surface defects. We show experimentally that the qu...
Bloch-wave engineering of quantum dot-micropillars for cavity quantum electrodynamics experiments
Bloch-wave engineering quantum dot-micropillars cavity quantum electrodynamics experiments
2011/8/4
Abstract: We have employed Bloch-wave engineering to realize submicron diameter ultra-high quality factor GaAs/AlAs micropillars (MPs). The design features a tapered cavity in which the fundamental Bl...
ZnSe / ZnS Quantum-Dot Semiconductor Optical Amplifiers
Linear Absorption Coefficient Linear Emission Coefficient Rate Equations (Res) Noise Figure
2013/1/30
ZnSe quantum dot (QD) semiconductor optical amplifier (SOA) is studied theoretically using net gain for linear Absorption coefficient and linear emission and these results are used to calculate noise ...
Single-mode 1.52 μm InAs/InP quantum dot DFB lasers
Quantum devices Lasers distributed-feedback
2015/5/25
Single-mode InAs/InP quantum dot DFB lasers with side-mode suppression ratio greater than 62 dB are demonstrated, operating CW up to 80°C. Relative intensity noise was less than -153 dB/Hz from 1 MHz ...
437 GHz Optical Pulse Train Generation from a C-Band InAs/InP Quantum Dot Laser
Lasers pulsed Quantum-wel dot devices
2015/5/22
We demonstrate 437 GHz optical pulse train generation based on grating coupled external cavities using InAs/InP quantum dots as the gain material. It is the highest repetition rate ever produced by QD...
Broadband Wavelength Conversion with S/C/L-band Flexible Operation Using Cross-Gain-Modulation in a Single Quantum Dot SOA
All-optical devices Quantum-well dot devices
2015/5/22
We experimentally demonstrated operating original and converted wavelengths flexible wavelength conversion using cross-gain-modulation in a single quantum dot semiconductor optical amplifier with cove...
40-Gbit/s RZ-DPSK Wavelength Conversion Using Four-Wave Mixing in a Quantum Dot SOA
RZ-DPSK Wavelength Conversion Dot SOA
2015/5/15
We demonstrate, for the first time, all-optical wavelength conversion of 40-Gbit/s RZ-DPSK signal using four-wave mixing in a quantum dot semiconductor optical amplifier. We achieved error-free operat...