HARPOON - High Access Raman Probe with Onboard Optical Numerization

HARPOON (High Access Raman Probe with Onboard Optical Numerization) is a next-generation ultra-compact laser Raman Spectrometer equipped with multiplexed fiber optic sensing points. HARPOONrsquo;s superior performance meets the top-level scientific requirements of multiple planetary missions to the inner and outer Solar System.HARPOON boasts an innovative combination of adaptive spatial coding optics and detector that enables unique measurements: in-situ chemical identification and sub-ppb quantitation of complex organic compounds, including pre-biotic compounds (e.g. amino acids); biomolecules (organic biomarkers such as proteins, lipids, and nucleic acid polymers); minerals; salts; volatiles.HARPOON has five science objectives traceable to observational requests of high-priority mission objectives and specific science investigations. HARPOON informs these five science objectives by performing high-resolution, high-sensitivity quantitative analyses of samples via an innovative approach to Raman spectroscopy. Raman is probably the most powerful tool available for in-situ, non-invasive molecular and mineralogical characterizations. Based on the inelastic scattering of light, the Raman technique identifies molecular species and their chemical and structural nature. HARPOON changes paradigm in in-situ planetary Raman exploration: it enhances the sensitivity of Raman intruments by several orders of magnitude.Our strategies for maximizing the likelihood of mission infusion are: cost-effective scheme, versatile design, and operational flexibility. This makes HARPOON suitable for multiple spacecraft configurations. The use of remote fiber optic sensing: (1) enables the placement of multiple Raman heads both external and internal to the spacecraft; (2) allows to concurrently or sequentially analyze different types of samples (non-contact and contact; solid and liquid); and (3) provides flexibility to couple Raman analysis to other analytical tools.