title: Effect of aligning pulse train on the orientation and alignment of a molecule in presence of orienting pulse.
abstract: Field-free molecular alignment is studied theoretically in presence of orienting laser pulse and a delayed Infrared laser (IRL) pulse train. The pulse shapes taken are sine square (sin2) and square. The degree of alignment can be significantly enhanced by the combination of orienting pulse and IRL pulse train compared with only IRL pulse train. Special emphasis is laid on time delay between orienting and aligning pulse, the width and shape of the pulse train. By adjusting the time delay, width and intensity of coupling laser one can suppress a population of particular state while simultaneously enhancing the population of desired states.
authors: Department of Physics, Swami Shradhanand College, University of Delhi, Delhi 110036, India. Electronic address: ashishtyagi.du@gmail.com.
authors: Ashish
authors: A
authors: Tyagi
authors: Department of Physics, Chaudhary Devi Lal University, Sirsa 125055, Haryana, India. Electronic address: anjalimaan2607@gmail.com.
authors: Anjali
authors: A
authors: Maan
authors: Department of Physics, Chaudhary Devi Lal University, Sirsa 125055, Haryana, India. Electronic address: dahlawat66@gmail.com.
authors: Dharamvir Singh
authors: DS
authors: Ahlawat
authors: Department of Physics, Swami Shradhanand College, University of Delhi, Delhi 110036, India. Electronic address: vprasad@ss.du.ac.in.
authors: Vinod
authors: V
authors: Prasad
keywords: Alignment; Pulse train; Rotational excitation