General theory of population transfer by adiabatic rapid passage with intense, chirped laser pulses

阅读量：

作者：

展开

摘要：

We present a general theory of adiabatic rapid passage (ARP) with intense, linearly chirped laser pulses. For pulses with a Gaussian profile and a fixed bandwidth, we derive a rigorous formula for the maximum temporal chirp rate that can be sustained by the pulse. A modified Landau-Zener formula displays clearly the relationships among the pulse parameters. This formula is used to derive the optimal conditions for efficient, robust population transfer. As illustrations of the theory, we present results for two- and four-level systems, and selective vibronic excitation in the I 2 molecule. We demonstrate that population transfer with chirped pulses is more robust and more selective than population transfer with transform-limited pulses.

展开

关键词：

Theoretical or Mathematical/ atom-photon collisions iodine molecule-photon collisions quantum optics vibronic states/ population transfer adiabatic rapid passage intense chirped laser pulses Gaussian profile maximum temporal chirp rate modified Landau-Zener formula optimal conditions robust population transfer two-level systems four-level systems vibronic excitation I 2 molecule transform-limited pulses I 2/ A3380 Photon interactions with molecules A3280 Photon interactions with atoms A4250 Quantum optics/ I2/el I /el