Coherent control of 40-THz optical phonons in diamond using femtosecond optical pulses

TL;DR

This paper demonstrates the coherent control of 40-THz optical phonons in diamond using femtosecond pulses, combining experimental techniques with quantum mechanical modeling to manipulate and understand phonon states.

Contribution

It introduces a method to coherently control high-frequency optical phonons in diamond with femtosecond pulses, supported by experimental results and quantum mechanical simulations.

Findings

Successful manipulation of 40-THz phonons in diamond

Observation of optical and phonon interferences in transient transmittance

Quantum mechanical model accurately reproduces experimental behavior

Abstract

Coherent control is an optical technique to manipulate quantum states of matter. The coherent control of 40-THz optical phonons in diamond was demonstrated by using a pair of sub-10-fs optical pulses. The optical phonons were detected via transient transmittance using a pump and probe protocol. The optical and phonon interferences were observed in the transient transmittance change and its behavior was well reproduced by quantum mechanical calculations with a simple model which consists of two electronic levels and shifted harmonic oscillators.