  Chirality discrimination is of a fundamental interest in biology, chemistry,
and metamaterial studies. In optics, near-field plasmon-resonance spectroscopy
with superchiral probing fields is effectively applicable for analyses of large
biomolecules with chiral properties. We show possibility for microwave
near-field chirality discrimination analysis based on magnon-resonance
spectroscopy. Newly developed capabilities in microwave sensing using
magnetoelectric (ME) probing fields originated from multiresonance
magnetic-dipolar-mode (MDM) oscillations in quasi-2D yttrium-iron-garnet (YIG)
disks, provide a potential for unprecedented measurements of chemical and
biological objects. We report on microwave near-field chirality discrimination
for aqueous D- and L-glucose solutions. The shown ME-field sensing is addressed
to microwave biomedical diagnostics and pathogen detection and to deepening our
understanding of microwave-biosystem interactions. It can be also important for
an analysis and design of microwave chiral metamaterials.
