title: I(2) vapor cell as narrow band optical filter.
abstract: It is shown that absorption cells containing I(2) vapor can be used in many situations as narrow band optical filters with very large solid angles. The explicit case of sodium has been considered.
authors.affiliation: Columbia Radiation Laboratory, Department of Physics, Columbia University, New York, New York 10027.
authors.forename: K H
authors.initials: KH
authors.lastname: Liao
authors.forename: R
authors.initials: R
authors.lastname: Gupta