Upvote:3
Samma Samadhi (right concentration) is a specific word in Buddhism to describe form realm and no form realm in conjunction with noble eight fold path. (please note Samma or Right) If you take only the word concentration it could well be applicable to the realm of desire as well. We all (every mind moment) have one-pointedness when we concentration on any object. You can concentrate only one object at a time.
Upvote:4
There are no 3 realms of Samadhi(Jhana). The jhanas have nothing to do with sensual desire. First four jhanas lead to birth in fine material realms. The last four lead to immaterial realms. One-pointeness by definition is pointed at one object. At that moment all sensual desires are subdued.
But it is possible to get in and out of the Jhanic states quickly if you master them. ex: It is said that the Buddha enters the Jhanas between each word he speaks while maintaining a normal speaking speed.