Abstract

The extraordinary range of conditions in protoplanetary disks drives complex patterns of atomic, molecular, and dust abundances - especially for abundant 'volatile' species such as water, carbon monoxide, and small organics that condense at different spatial locations, or 'snowlines' in the disk. The bulk composition of planets can thus vary, compared to that of their host star, depending on their origin and migration history.  The latest generation of Adaptive Optics (AO)-fed infrared spectrographs now provide sufficiently high dynamic range capabilities to robustly characterize exoplanetary and protoplanetary disk atmospheres. This talk will present an overview of recent results from Keck Planet Imager and Characterizer (KPIC)-NIRSPEC studies of exoplanet atmospheres and those from the JWST Discs (JDISCS) MIRI spectroscopy programs.