Expanding the Frontiers of Science

Graphene Research Using Coherent anti-Stokes
Raman Scattering Spectroscopy (CARS)

Graphene is a unique form of pure carbon arranged in a one atom thick regular hexagonal pattern. Its simple 2D structure along with numerous potential applications have made it an important topic of research in theoretical physics. In 2010, the Noble Prize in Physics was jointly awarded to Andre Geim and Konstantin Novoselov from the University of Manchester for their groundbreaking experiments involving Graphene.

Dr. Alexander Balandin, Professor of Electrical Engineering and Chair of Materials Science and Engineering at University of California, Riverside is currently investigating the properties of Graphene at his Nano Device Laboratory with the help of Newport’s Coherent anti-Stokes Raman Scattering Spectroscopy (CARS) solution. The solution uses a Spectra-Physics Mai-Tai femtosecond pulse laser and Newport’s Wavelength Extension Unit. The latter device was  developed in Newport’s Technology and Applications Center. The CARS technique is superior in speed and signal strength to the common Raman Spectroscopy technique for investigating the quality of a Graphene substrate. For example, CARS can analyze a 500 µm x 500 µm Graphene sample in 1 second, while Raman spectroscopy can take 7 to 8 hours to analyze the same sample with less optical resolution. While CARS is still not a fast enough solution for production environments, it shows huge potential relative to Raman Spectroscopy.

Newport Applications Lab

Potential applications for Graphene include:

  • Flat Panel Displays
  • Solar Cells
  • High Strength to Weight Components
  • High Frequency Transistors
  • Hydrogen Fuel Cells
  • Lithium Ion Batteries
  • Ultracapacitors
  • Electrodes
  • Sensors

Related Information

About Newport

At Newport, our mission is to develop and deliver photonics technology and products that expand the frontiers of science and improve our world. Our vision is to be the world's premier source for photonics technology and products. We offer the broadest portfolio of photonics products in the world, which are used everyday by scientists, researchers and engineers.

Every day, Newport products:

  • Help researchers to advance the fundamental theories of physics and chemistry
  • Enable scientists to discover new approaches to treat disease
  • Facilitate the manufacturing of smaller, faster and more cost effective semiconductor chips that power the word's electronic devices
  • Make our world safer by supporting applications in sensing and security
  • Enable a wide range of precision applications in some of the world's largest industries