Seriously! We literally did it in our modern physics lab. For me that was ~2004. It's not a terrible difficult experiment to do at home. Also, 62nm is not a par

Seriously! We literally did it in our modern physics lab. For me that was ~2004. It's not a terrible difficult experiment to do at home. Also, 62nm is not a particularly small distance in electro-optics. You can buy polarizers and the like off Thorlabs for ~$9. This person seems to be a bit of a crank.