Narrowing of the homogeneous two-photon absorption line width in two-level dipolar system

Aleks K. Rebane; Mikhail A. Drobizhev; Nikolay S. Makarov

doi:10.1117/12.761400

29 January 2008 Narrowing of the homogeneous two-photon absorption line width in two-level dipolar system

Aleks K. Rebane, Mikhail A. Drobizhev, Nikolay S. Makarov

Proceedings Volume 6903, Advanced Optical Concepts in Quantum Computing, Memory, and Communication; 690305 (2008) https://doi.org/10.1117/12.761400
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

We study narrowing of nonlinear two photon absorption line shape in system with non-zero permanent dipole moment difference between the ground- and excited state. The temperature-induced broadening of one photon absorption (1PA) and two photon absorption (2PA) line shapes is modeled by subjecting the resonance transition frequency to random fluctuations of varying amplitude and by solving numerically the corresponding two-level density matrix equation of motion. We show that under conditions, when 1PA and 2PA transitions are both far from saturation, the 2PA homogeneous line width may be as much as 25% narrower than the corresponding 1PA line width. This offers novel possibilities for reducing the temperature-induced dephasing in quantum computing, quantum memory and other applications based on coherent multi-photon interactions.

Citation Download Citation

Aleks K. Rebane, Mikhail A. Drobizhev, and Nikolay S. Makarov "Narrowing of the homogeneous two-photon absorption line width in two-level dipolar system", Proc. SPIE 6903, Advanced Optical Concepts in Quantum Computing, Memory, and Communication, 690305 (29 January 2008); https://doi.org/10.1117/12.761400

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available