The time dependent Schrödinger equation of a homonuclear diatomic molecule in the presence of a linearly polarized laser ﬁeld is numerically solved by means of a split-operator parallel code. The calculations are carried out by assuming a single active electron model with ﬁxed nuclei; a simpliﬁed two-dimensional model of the system is used. The highly nonlinear response of the electron wave function to the laser electric ﬁeld stimulates the molecule to emit electromagnetic radiation consisting of a wide plateau of odd harmonics of the laser ﬁeld. It is shown that the emitted spectrum can be ﬁnely controlled by changing the angle between the laser electric ﬁeld and the molecular axis; this can be used to achieve a tunable source of high frequency radiation.
|Numero di pagine||6|
|Rivista||JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS|
|Stato di pubblicazione||Published - 2010|
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics