The quantum Otto mobile and its application to directed energy Conference Paper uri icon


  • We show that it is possible to improve the efficiency of a laser system by adding a classical heat engine cycle to the laser gas that can remove both thermal and vibrational energy from the gas. A rapid pulsed CO 2 laser/gas expansion cycle engine and a continuous CO 2 laser, Stirling or Brayton cycle engine are analyzed. We derive a theoretical total energy recovery efficiency for a CO 2 laser combined with a classical heat engine of 89%. Then, several distinctly different functional laser-coupled heat engine designs will be evaluated to determine the viability of these concepts in practice. Ultimate practical device efficiencies are projected to reach 75% efficiency.

name of conference

  • High-Power Laser Ablation 2004

published proceedings

  • High-Power Laser Ablation V

altmetric score

  • 3

author list (cited authors)

  • Hill, A. E., Rostovtsev, Y. V., & Scully, M. O.

citation count

  • 1

complete list of authors

  • Hill, Alan E||Rostovtsev, Yuri V||Scully, Marlan O

editor list (cited editors)

  • Phipps, C. R.

publication date

  • September 2004