the modulation response, relative intensity noise and frequency noise characteristics of qd lasers are investigated theoretically, in presence of an additional optical pumping. it is revealed that the modulation response of qd laser enhances under additional optical beam. by small signal analysis of the carriers' and photons' rates, it is proposed that by injecting excess carriers to ...

Describing routes is an easy everyday task for people who know the environment well. However, strategies exist also for situations where only incomplete knowledge is available. We present a study eliciting verbalized route plans and thinkaloud data from novices and experts who were asked to find and describe routes in a complex building. The spatial descriptions were analyzed relating the level...

In conversation, speakers become more like each other in various dimensions. This phenomenon, commonly called entrainment, coordination, or alignment, is widely believed to be crucial to the success and naturalness of human interactions. We investigate entrainment in four acoustic and prosodic dimensions. We explore whether speakers coordinate with each other in these dimensions over the conver...

We present an experimental study of the turn-on delay in pulsed mid-infrared quantum cascade lasers. report unexpectedly long time depending on pumping current, which does not agree with conventional theoretical predictions for step-like excitation. Similar behavior has been observed InP- and InAs-based QCLs emitting near 8${\mu}$m. Numerical simulations performed using a model based rate equat...

In this paper we report on our work on a prototype route navigation dialogue system for use in a vehicle. The system delivers spoken turn-by-turn directions, and has been developed to accept naturally phrased navigation queries, as part of our overall effort to create an in-vehicle information system which delivers information as requested while placing minimal cognitive load on the driver.