World’s first Water-Wave Laser

World’s first Water-Wave Laser

Question: World’s first water-wave laser has been created by … 
(a) Israeli Scientists
(b) Russian Scientist
(c) Indian Scientist
(d) Chinese Scientist
Ans:(a)
Related facts:

  • In a report, published on 21st November, 2016 in the journal Nature Photonics Israeli researchers have demonstrated, for the first time that laser emissions can be created through the interaction of light and water waves.
  • The study was conducted by Technion-Israel Institute of Technology students Shmuel Kaminski, Leopoldo Martin, and Shai Maayani, under the supervision of Professor Tal Carmon, head of the Optomechanics Center at the Mechanical Engineering Faculty at Technion.
  • A typical laser can be created when the electrons in atoms become “excited” by energy absorbed from an outside source, causing them to emit radiation in the form of laser light.
  • Technion researchers created a device in which an optical fiber delivers light into a tiny droplet of octane and water.
  • Light waves and water waves pass through each other many times (approximately one million times) inside the droplet, generating the energy that leaves the droplet as the emission of the water-wave laser.
  • Furthermore, a drop of water is a million times softer than the materials used in current laser technology. The minute pressure applied by light can therefore cause droplet deformation that is a million times greater than in a typical optomechanical device,
  • The new technique may offer greater control of the laser’s emissions and capabilities.
  • This “water-wave laser” can be used in tiny sensors that combine light waves, sound and water waves, or as a feature on microfluidic “lab-on-a-chip” devices used to study cell biology and to test new drug therapies.

Reference:
http://www.technion.ac.il/en/2016/11/1st-water-wave-laser/
http://www.natureworldnews.com/articles/33150/20161130/scientists-create-first-water-wave-laser-used-new-drug-therapies.htm