"Cyrus" in Isaiah

The prophet Isaiah definitely prophesied of Jesus in various passages of the Book of Isaiah, (for example In Isaiah 53:2-11), but I have yet to find in any of these so-called Messianic prophecies where Isaiah actually calls God's son "Jesus."

This, however, is not the case when Isaiah mentions "Cyrus" in Isaiah 44:28 or in Isaiah 45:1 (see also Ezra chapters 1, 5, & 6 as well as in 2 Chronicles 36:22-23.

In all of these passages the name of "Cyrus" is mentioned, yet not only in the two Isaiah passages but also in the Ezra and in the 2 Chronicles' passages--which some scholars attribute Ezra as being the author--the name of "Cyrus is" used.

I know that, at least in the places in Isaiah where the historical name of "Cyrus" is used in the text of these passages, some OT critics say that someone besides Isaiah himself actually wrote those passages--an assertion to which I personally do not believe is true--because the historical "Cyrus" actually lived at least 100 or more years after Isaiah died.

Still, this question remains:

How could Isaiah have known about this "Cyrus" if he died some 100 to 200 before the historical "Cyrus" actually fulfilled these prophecies about him?

How did Isaiah know that these prophecies would be literally fulfilled by the man called "Cyrus"?

Comments? Observations?