We present the first three-dimensional (3D) data sets recorded using optical coherence elastography (OCE). Uni-axial strain rate was measured on human skin in vivo using a spectral-domain optical coherence tomography (OCT) system providing >450 times higher line rate than previously reported for in vivo OCE imaging. Mechanical excitation was applied at a frequency of 125 Hz using a ring actuato...

Recent developments in optical techniques for plasma diagnostics are critically reviewed. The primary emphasis is on plasma-induced emission and laser-induced fluorescence probes of radical and ionic concentrations and temperatures in low pressure discharges like those used in microelectronic fabrication. Other techniques such as optogalvanic, infrared, spontaneous and stimulated Raman, and mul...

This paper introduces various techniques for a new fronthaul network segment applied in centralized radio access networks (C-RAN) architecture. The promising fronthaul interfaces are described which are considered to meet physical requirements for the fronthaul network segment and to build a new radio access network solution. Various optical solutions including CPRI (Common Public Radio Interfa...

The demand for higher data rates along with variable QOS and variable bandwidths has led to the remarkable advancements in the communication technology. To meet the above-listed objectives, whereas the TDMA and WDMA require complex protocols and extensive hardware, the CDMA systems are much simpler and very easily support the above-mentioned services. Since optical CDMA systems assigns unique c...

The most obvious optical method for measuring the speed of a moving object is to use the Doppler effect: light reflected from the moving object will be shifted in frequency on proportion to the line of sight velocity of the object. While we are familiar with examples in the radio domain (such as police traffic radar and Doppler weather radar) and with acoustic waves (the apparent change in pitc...

Recent advances in optical imaging techniques using voltage-sensitive dyes have provided new insights into the dynamic of neural processing in distributed cortical networks.

Brain imaging techniques utilize hemodynamic changes that accompany brain activation. However, stimulus-evoked hemodynamic responses display considerable inter-trial variability and the sources of this variability are poorly understood. One of the sources of this response variation could be ongoing spontaneous hemodynamic fluctuations. We recently investigated this issue by measuring cortical h...