activity
20012021
most citedQuantum-mechanical wavepacket transport in quantum cascade laser structures

126 citations · 364 across the 9 of their papers we have counts for

collaborators

9 papers

cond-mat.mtrl-sci2021★ 11 cited

Role of chemical disorder in tuning the Weyl points in vanadium doped CoTiSn

Payal Chaudhary, Krishna Kant Dubey, Gaurav K. Shukla +8

The lack of time-reversal symmetry and Weyl fermions give exotic transport properties to Co-based Heusler alloys. In the present study, we have investigated the role of chemical di…

cond-mat.str-el2006★ 36 cited

Role of anisotropy in the spin-dimer compound BaCuSi2O6

Suchitra E. Sebastian, P. Tanedo, P. A. Goddard +9

We present results of magnetisation and electron paramagnetic resonance experiments on the spin-dimer system BaCuSi2O6. Evidence indicates that the origin of anisotropic terms in t…

cond-mat.mes-hall2005★ 126 cited

Quantum-mechanical wavepacket transport in quantum cascade laser structures

S. -C. Lee, F. Banit, M. Woerner +1

We present a viewpoint of the transport process in quantum cascade laser structures in which spatial transport of charge through the structure is a property of coherent quantum-mec…

cond-mat.other2004★ 86 cited

Self-Consistent Theory of the Gain Linewidth for Quantum Cascade Lasers

F. Banit, S. -C. Lee, A. Knorr +1

The linewidth in intersubband transitions can be significantly reduced below the sum of the lifetime broadening for the involved states, if the scattering environment is similar fo…

cond-mat.other2004★ 58 cited

Controlling many-body effects in the midinfrared gain and THz absorption of quantum cascade laser structures

M. F. Pereira, S. -C. Lee, A. Wacker

A many-body theory based on nonequilibrium Green functions, in which transport and optics are treated on a microscopic quantum mechanical basis, is used to compute gain and absorpt…

cond-mat.mes-hall2003★ 27 cited

Theoretical analysis of spectral gain in a THz quantum cascade laser: prospects for gain at 1 THz

S. -C. Lee, A. Wacker

In a recent Letter [Appl. Phys. Lett. 82, 1015 (2003)], Williams et al. reported the development of a terahertz quantum cascade laser operating at 3.4 THz or 14.2 meV. We have calc…