Quantum control via chirped coherent anti-Stokes Raman spectroscopy
Abstract
A chirped-pulse quantum control scheme applicable to coherent anti-Stokes Raman scattering spectroscopy, named as C-CARS, is presented aimed at maximizing the vibrational coherence in molecules. It implies chirping of three incoming pulses in the four-wave mixing process of CARS, the pump, the Stokes and the probe, to fulfill the conditions of adiabatic passage. The scheme is derived in the framework of rotating wave approximation and adiabatic elimination of excited state manifold simplifying the four-level model system into a ‘super-effective’ two level system. We demonstrate that the selectivity of excitation of vibrational degrees of freedom can be controlled by carefully choosing the spectral chirp rate of the pulses. The robustness, spectral selectivity and adiabatic nature of this method are advantageous for improving the existing methods of CARS spectroscopy for sensing, imaging and detection.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 14, 2023
- Source ID
- 10.1088/2058-9565/ace3ed
Entities
People
- Dmitry Budker
- Jabir Chathanathil
- Svetlana A. Malinovskaya
Organizations
- Office of Naval Research