Yes, artemia are brine shrimp. You can make your own hatchery as I did when I had fry. There are instructions for a simple DIY hatcheries from 2 liter plastic bottles on the web if you search for brine shrimp hatchery.
Chickadee has posted a list of pages written by a very knowledgeable breeder of bettas. The post with the links is called A betta diary from a master IMHO, and is located in the betta forum as the first post you will find. I hope this helps. The link to the post is:
A Betta Diary from a Master IMHO
Please keep us informed about your progress. We've enjoyed your posts. Keep them coming!