Water-wave laser - Break through in Medical Sciences.
Q. Recently a water-wave laser has been created. It finds uses in which of the following areas?
1) Study Cell Biology
2) Test new drug therapies
3) Semiconductor fabrication- Published on 01 Dec 16a. 2, 3
b. 1, 3
c. 1, 2
d. All of the above
ANSWER: 1, 2
Scientists have created the first 'water-wave laser' that emits a beam through the interaction of light and water waves, and may be used in 'lab-on-a-chip' devices to study cell biology and test new drug therapies.
The laser could someday be used in tiny sensors that combine light waves, sound and water waves. For now, the water-wave laser offers a "playground" for scientists studying the interaction of light and fluid at a scale smaller than the width of a human hair.
The study conducted by Technion-Israel Institute of Technology is the first bridge between two areas of research that were previously considered unrelated to one another: nonlinear optics and water waves.
Researchers, led by Professor Tal Carmon, showed for the first time that water wave oscillations within a liquid device can also generate laser radiation.
The possibility of creating a laser through the interaction of light with water waves has not been examined, mainly due to the huge difference between the low frequency of water waves on the surface of a liquid and the high frequency of light wave oscillations.
This frequency difference reduces the efficiency of the energy transfer between light and water waves, which is needed to produce the laser emission. To compensate for this low efficiency, the researchers created a device in which an optical fibre delivers light into a tiny droplet of octane and water.
