Using Lasers To Make Photonic Crystals From Hydrogel Nanoparticles - New Technology

A research team from Georgia Tech's School of Chemistry and Biochemistry has created photonic crystals from hydrogel nanoparticles. By altering the water content of the hydrogels, they found they could tune the optical properties of the photonic crystals.

The self assembling crystal structures can also have various features incorporated into them enabling them to be used as optical waveguides and lenses. The features are added by a photo patterning technique using a frequency-doubled Nd:YAG laser. The laser adds heat to 224nm poly-N-isopropylacrylamide nanoparticles that have additions of gold nanoparticles. The gold converts the laser energy to heat which causes localised melting and subsequent alterations in particle size. The overall crystal structure can therefore be manipulated.

Posted 11th September 2003

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Your comment type
Submit
Azthena logo

AZoM.com powered by Azthena AI

Your AI Assistant finding answers from trusted AZoM content

Your AI Powered Scientific Assistant

Hi, I'm Azthena, you can trust me to find commercial scientific answers from AZoNetwork.com.

A few things you need to know before we start. Please read and accept to continue.

  • Use of “Azthena” is subject to the terms and conditions of use as set out by OpenAI.
  • Content provided on any AZoNetwork sites are subject to the site Terms & Conditions and Privacy Policy.
  • Large Language Models can make mistakes. Consider checking important information.

Great. Ask your question.

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.