42.62.-b Laser applications
- 42.62.Be Biological and medical applications (see also 87.50.W-, 87.63.L-, and 87.80.Cc in biological and medical physics)
- 42.62.Cf Industrial applications
- 42.62.Eh Metrological applications; optical frequency synthesizers for precision spectroscopy (see also 06.20.-f Metrology in metrology, measurements, and laboratory procedures)
- 42.62.Fi Laser spectroscopy (2)