Scientists have now demonstrated it in action using light; by shining an CO 2 laser through a negative-index material, they were able to demonstrate an inverse Doppler effect, in which the laser ...

Aghajanian, P., Assaf, S., Korst, L. et al. Fetal middle cerebral artery Doppler fluctuations after laser surgery for twin–twin transfusion syndrome. J Perinatol 31, 368–372 (2011 ...

Laser Doppler vibrometry brings more accurate microphone calibration. 07 Sep 2021. NIST technique improves over traditional non-optical methods. Sound idea: vibrometry test. Microphone calibration is ...

Polytec’s VibroOne laser Doppler vibrometer is an all-in-one solution developed for non-contact vibration measurement. The VibroOne allows users to examine dynamics, acoustics, and vibration problems ...

Graphic Representation of the Difference Doppler Technique. The two laser beams are superimposed in the measurement volume and create an interference pattern of bright and dark fringes in this spatial ...

We lack non-invasive tools for evaluating the coronary and renal microcirculations. Since cutaneous Doppler laser exploration has evidenced impaired cutaneous microvascular responses in coronary ...

In its single frequency version, it is a top-notch solution for Raman spectroscopy, holography, laser Doppler velocimetry, or frequency doubling. Oxxius’ monolithic laser technology featured in the ...