  Charge density wave (CDW) order is an emergent quantum phase that is
characterized by a periodic lattice distortion and charge density modulation,
often present near superconducting transitions. Here we uncover a novel
inverted CDW state by using a femtosecond laser to coherently over-drive the
unique star-of-David lattice distortion in 1T-TaSe$_2$. We track the signature
of this novel CDW state using time- and angle-resolved photoemission
spectroscopy and time-dependent density functional theory, and validate that it
is associated with a unique lattice and charge arrangement never before
realized. The dynamic electronic structure further reveals its novel
properties, that are characterized by an increased density of states near the
Fermi level, high metallicity, and altered electron-phonon couplings. Our
results demonstrate how ultrafast lasers can be used to create unique states in
materials, by manipulating charge-lattice orders and couplings.
