Columbia subject headings:
Harvard subject headings:
Far infrared lasers--Congresses.
Free electron lasers--Congresses.
High temperature superconductors--Congresses.
Infrared technology--Congresses
Millimeter wave devices--Congresses.
Princeton subject headings:
Infrared technology--Congresses.
Millimeter waves--Congresses.
Plasma diagnostics--Congresses.
Submillimeter waves--Congresses.