Home R & D Nano New nanostructures based on IR Light-Matter Interactions technologies can help with defense,...

New nanostructures based on IR Light-Matter Interactions technologies can help with defense, imaging & sensing

New nanostructures based on IR Light-Matter Interactions technologies can help with defense, imaging & sensing

GaN emits blue-light radiation commonly used in LEDs, but this is the first time that infrared light-matter interactions are shown to occur in GaN. Using such advanced materials, it is possible to make polariton-controlled electronic devices, which are many times more efficient than other electronics. Polariton-based technologies enable several applications, including high-speed wireless communication, next-gen light sources, quantum computers, and waste heat conversion. We demonstrate a novel way to utilize GaN in infra-photonic applications. Researchers at the JNCASR can help people develop IR sources and detectors for energy, security, imaging, and many other applications.

  • GaN emits blue-light radiation commonly used in LEDs, but this is the first time that infrared light-matter interactions are shown to occur in GaN. Using such advanced materials, it is possible to make polariton-controlled electronic devices, which are many times more efficient than other electronics.
  • Polariton-based technologies enable several applications, including high-speed wireless communication, next-gen light sources, quantum computers, and waste heat conversion.
  • Researchers at the JNCASR can help people develop IR sources and detectors for energy, security, imaging, and many other applications.
  • Researchers at JNCASR have used surface polariton excitations that cause light-matter interactions at IR wavelengths.
  • Scientists have shown that infrared polariton excitations are reproducible in other semiconductors and can be applied in many other semiconductors.

What are the specific advantages of using GaN in polariton-controlled electronic devices?

By creating a special structure that traps light at its surface, researchers can produce light able to penetrate some parts of the IR spectrum. This will enable engineers to create highly effective light absorbers, emitters and modulators for many applications.

GaN, which emits blue light, is one of the most evolved semiconductors. Since LEDs and laser diodes are now commercial, it is still lacking in IR light harvesting or Ga IR optical elements development.

What are the advantages of using GaN nanostructures to produce and emit light?

Scientists at the Jawaharlal Nehru Centre of Advanced Scientific Research (JNCASR), part of the Department of Science and Technology, have demonstrated that it is possible to produce and emit light from GaN nanostructures. GaN emits blue-light radiation commonly used in LEDs, but this is the first time that infrared light-matter interactions are shown to occur in GaN. Researchers at JNCASR have used surface polariton excitations that cause light-matter interactions at IR wavelengths.

Surface polaritons are the polarized waves that travel between two insulators, such as a conductor and an insulator, like air. By manipulating the morphological properties of these nanostructures, the researchers were able to excite plasmon polaritons in GaN that allow it to transmit light far away. Polaritons, also known as quantum dots, behave very differently from particles that exist in matter.

What are the advantages of using this technique compared to other deposition methods?

To make these GaN nanostructures, they used a specially developed method for depositing materials called molecule beam epitaxy in JNCASR. This technique uses an extremely high vacuum to enable scientists to create crystal structures much less than a human hair’s width.

Using such advanced materials, it is possible to make polariton-controlled electronic devices, which are many times more efficient than other electronics. Polariton-based technologies enable several applications, including high-speed wireless communication, next-gen light sources, quantum computers, and waste heat conversion.

Blue LEDs with GaN have radically transformed the way we live. It is well known that blue LEDs emit light in the visible spectrum, but infrared optics applications are not well understood. We demonstrate a novel way to utilize GaN in infrared nanophotonic applications. Scientists have shown that infrared polariton excitations are reproducible in other semiconductors and can be applied in many other semiconductors. The results of their work have been cited in the renowned journal Nano Letters. The researchers have now shown that the technology is possible and that the results have been convincing enough to convince investors that the technology will work.

Researchers at the JNCASR can help people develop IR sources and detectors for energy, security, imaging, and many other applications.

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