Who created a lazerpointer?

or:Who created a lazerpointer?or:The people who invented the laser pointers were Alferov and Kroemer they were given the prize for their development

or:Who created a lazerpointer?

or:The people who invented the laser pointers were Alferov and Kroemer they were given the prize for their development within the field of semiconductor physics, where they had studied the type of substances that was first used to build semiconductor lasers, that is, the kind of miniature lasers that today have become the cheapest, lightest, and smallest laser pointers.

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