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Optimization of two tailored rectangular femtosecond laser pulses in methane dissociation

Sadighi Bonabi, R ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1117/12.854033
  3. Publisher: 2010
  4. Abstract:
  5. Based on the quantum mechanics principles and classically calculated dressed potential surfaces by using field assisted dissociation model the dissociation probability for CH4 + molecule exposed with a 100 femtosecond 8 Jcm-2 Ti:sapphire laser pulses is calculated. Using the gradient optimization method two tailored rectangular laser pulses for controlling the dissociation of C-H bond of CH4 + molecule along laser pulse direction is found. In the proposed optimization method, the complicacy of solving Schrodinger wave equation is reduced by using classical method and in contrast to the usual controlling and pulse shaping methods of chemical reactions, the experimental data is not needed and this reduces the controlling costs
  6. Keywords:
  7. Pulse shaping ; C-H bond ; Classical methods ; Controlling costs ; Dissociation models ; Dissociation probability ; Experimental data ; Femtosecond laser pulse ; Femtoseconds ; Field assisted dissociation model ; Gradient optimization ; Optimization method ; Potential surfaces ; Pulse shaping method ; Pulse-shaping ; Quantum mechanics ; Schrodinger wave equations ; Selective control ; Ti: Sapphire laser ; Dissociation ; Methane ; Optimization ; Probability ; Pulse shaping circuits ; Pulsed laser applications ; Schrodinger equation ; Ultrafast lasers ; Ultrashort pulses ; Wave equations ; Solid state lasers
  8. Source: Proceedings of SPIE - The International Society for Optical Engineering, 12 April 2010 through 16 April 2010 ; Volume 7721 , April , 2010 ; 0277786X (ISSN) ; 9780819481948 (ISBN)
  9. URL: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1345780