@article {Kim:407,
	title = {Modulation of the Bonding-Antibonding Splitting in Te by Coherent Phonons},
	journal = {Phys. Rev. B},
	volume = {68},
	year = {2003},
	pages = {012301{\textendash}012304},
	abstract = {We present femtosecond time-resolved measurements of the dielectric tensor of tellurium following intense photoexcitation. Strong impulsive photoexcitation of crystalline tellurium weakens the covalent bonds between atoms, which undergo coherent oscillations (at \&gt; 3 THz) as they relax to new equilibrium positions. As this photoexcitation drives the lattice toward a band-crossing transition, we track the decrease and oscillation of the bonding-antibonding splitting. The reduction of the bonding-antibonding splitting exceeds the band gap for 100 fs, indicating a transient state with crossed bands.},
	doi = {10.1103/physrevb.68.012301},
	url = {/files/mazur/files/rep_407.pdf},
	author = {A. M.-T. Kim and C. A. D. Roeser and Mazur, E.}
}
