Quantum control of photodissociation by manipulation of bond softening

Adi Natan; Uri Lev; Vaibhav S. Prabhudesai; Barry D. Bruner; Daniel Strasser; Dirk Schwalm; Itzik Ben-Itzhak; Oded Heber; Daniel Zajfman; Yaron Silberberg

doi:10.1103/PhysRevA.86.043418

Quantum control of photodissociation by manipulation of bond softening

Adi Natan^*, Uri Lev, Vaibhav S. Prabhudesai, Barry D. Bruner, Daniel Strasser, Dirk Schwalm, Itzik Ben-Itzhak, Oded Heber, Daniel Zajfman, Yaron Silberberg

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

We present a method to control photodissociation by manipulating the bond-softening mechanism occurring in strong shaped laser fields, namely by varying the chirp sign and magnitude of an ultrashort laser pulse. Manipulation of bond softening is experimentally demonstrated for strong-field (1012-1013 W/cm2) photodissociation of H2+, exhibiting a substantial increase of dissociation by positively chirped pulses with respect to both negatively chirped and transform-limited pulses. The measured kinetic energy release and angular distributions are used to quantify the degree of dissociation control. The control mechanism is attributed to the interplay of dynamic alignment and chirped light induced potential curves.

Original language	English
Article number	043418
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	86
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.86.043418
State	Published - 15 Oct 2012

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10.1103/PhysRevA.86.043418

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title = "Quantum control of photodissociation by manipulation of bond softening",

abstract = "We present a method to control photodissociation by manipulating the bond-softening mechanism occurring in strong shaped laser fields, namely by varying the chirp sign and magnitude of an ultrashort laser pulse. Manipulation of bond softening is experimentally demonstrated for strong-field (1012-1013 W/cm2) photodissociation of H2+, exhibiting a substantial increase of dissociation by positively chirped pulses with respect to both negatively chirped and transform-limited pulses. The measured kinetic energy release and angular distributions are used to quantify the degree of dissociation control. The control mechanism is attributed to the interplay of dynamic alignment and chirped light induced potential curves.",

author = "Adi Natan and Uri Lev and Prabhudesai, {Vaibhav S.} and Bruner, {Barry D.} and Daniel Strasser and Dirk Schwalm and Itzik Ben-Itzhak and Oded Heber and Daniel Zajfman and Yaron Silberberg",

year = "2012",

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doi = "10.1103/PhysRevA.86.043418",

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T1 - Quantum control of photodissociation by manipulation of bond softening

AU - Natan, Adi

AU - Lev, Uri

AU - Prabhudesai, Vaibhav S.

AU - Bruner, Barry D.

AU - Strasser, Daniel

AU - Schwalm, Dirk

AU - Ben-Itzhak, Itzik

AU - Heber, Oded

AU - Zajfman, Daniel

AU - Silberberg, Yaron

PY - 2012/10/15

Y1 - 2012/10/15

N2 - We present a method to control photodissociation by manipulating the bond-softening mechanism occurring in strong shaped laser fields, namely by varying the chirp sign and magnitude of an ultrashort laser pulse. Manipulation of bond softening is experimentally demonstrated for strong-field (1012-1013 W/cm2) photodissociation of H2+, exhibiting a substantial increase of dissociation by positively chirped pulses with respect to both negatively chirped and transform-limited pulses. The measured kinetic energy release and angular distributions are used to quantify the degree of dissociation control. The control mechanism is attributed to the interplay of dynamic alignment and chirped light induced potential curves.

AB - We present a method to control photodissociation by manipulating the bond-softening mechanism occurring in strong shaped laser fields, namely by varying the chirp sign and magnitude of an ultrashort laser pulse. Manipulation of bond softening is experimentally demonstrated for strong-field (1012-1013 W/cm2) photodissociation of H2+, exhibiting a substantial increase of dissociation by positively chirped pulses with respect to both negatively chirped and transform-limited pulses. The measured kinetic energy release and angular distributions are used to quantify the degree of dissociation control. The control mechanism is attributed to the interplay of dynamic alignment and chirped light induced potential curves.

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JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 4

M1 - 043418

ER -

Quantum control of photodissociation by manipulation of bond softening

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