Acoustic graphene plasmons

https://news.kaist.ac.kr/newsen/html/news/?mode=V&mng_no=12870
https://www.youtube.com/watch?v=GQadIhtn5qQ

Laser-illuminated nano-tip excites the acoustic graphene plasmon in the layer between the graphene and the gold/alumina.
Credit: Professor Min Seok Jang / KAISThttps://news.kaist.ac.kr/newsen/html/news/?mode=V&mng_no=12870
https://www.youtube.com/watch?v=GQadIhtn5qQ