Compact Multipass Gas Cell for Multi-Gas Spectral Sensors

Abstract:

The invention is directed to a multi-pass gas cell, which is defined by the appended claims. Embodiments and examples in the following description which are considered not covered by the appended claims are not part of the present invention and are only provided for the purpose of understanding. The following presents a summary of one or more aspects of the present disclosure, in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated features of the disclosure, and is intended neither to identify key or critical elements of all aspects of the disclosure nor to delineate the scope of any or all aspects of the disclosure. Its sole purpose is to present some concepts of one or more aspects of the disclosure in a form as a prelude to the more detailed description that is presented later. The invention is defined by the appended claims. The invention provides a multi-pass gas cell according to claim 1. In some examples, the input and output optical components may include curved mirrors or lenses. In some examples, the set of two or more reflectors may include spherical mirrors, concave mirrors, flat mirrors, or cylindrical mirrors.