Abstract: A modular accessory for orienting a light path at different angles to an optical axis of a spectrometer is described. The modular accessory includes an attachment module configured to couple to a Raman spectrometer. The attachment module attaches to a base module which includes a visible light imager. An objective module couples to the base module and includes an objective configured to provide an optical path for the sample light beam travelling from a sample along a light path to an objective lens of the objective, through the objective, and to the input for the sample light beam of the base module. The modules can provide tilt and swivel angles to orient the light path at different angles. Portable Raman systems including the modular accessory and a Raman spectrometer are also described as well as methods for using the systems.

Abstract: A modular accessory for orienting a light path at different angles to an optical axis of a spectrometer is described. The modular accessory includes an attachment module configured to couple to a Raman spectrometer. The attachment module attaches to a base module which includes a visible light imager. An objective module couples to the base module and includes an objective configured to provide an optical path for the sample light beam travelling from a sample along a light path to an objective lens of the objective, through the objective, and to the input for the sample light beam of the base module. The modules can provide tilt and swivel angles to orient the light path at different angles. Portable Raman systems including the modular accessory and a Raman spectrometer are also described as well as methods for using the systems.