30 research outputs found
High Frequency Acousto-electric Single Photon Source
We propose a single optical photon source for quantum cryptography based on the acousto-electric effect. Surface acoustic waves (SAWs) propagating through a quasi-one-dimensional channel have been shown to produce packets of electrons which reside in the SAW minima and travel at the velocity of sound. In our scheme these electron packets are injected into a p-type region, resulting in photon emission. Since the number of electrons in each packet can be controlled down to a single electron, a stream of single (or N) photon states, with a creation time strongly correlated with the driving acoustic field, should be generated
Restless legs syndrome and functional limitations among American elders in the Health and Retirement Study
The MAP2K5-linked SNP rs2241423 is associated with BMI and obesity in two cohorts of Swedish and Greek children
Biophysical stimuli induced by passive movements compensate for lack of skeletal muscle during embryonic skeletogenesis
Effects of supervised aerobic and strength training in overweight and grade I obese pregnant women on maternal and foetal health markers: the GESTAFIT randomized controlled trial
The relationship among restless legs syndrome (Willis–Ekbom Disease), hypertension, cardiovascular disease, and cerebrovascular disease
Design of a widely tunable modulated grating Y-branch laser using the additive vernier effect for improved super-mode selection
Progress in integrated widely tunable edge-emitting 1.55 µm laser diodes
We present the progress obtained in recent years on widely tunable edge-emitting lasers at 1.55 mu m. We focus on electronically tunable lasers, which can switch the wavelength in tens of nanoseconds and thus offer great potential for new networking concepts such as optical packet/burst switching, label switching, bandwidth on demand, ..