### Abstract

A time-derivative Lorentz material model is introduced for the polarization and magnetization fields in a complex medium illuminated by an ultrafast pulsed beam. This model represents a straightforward generalization of the standard Lorentz material model to include the time derivatives of the fields as driving mechanisms. The Green function for this material is derived and used to demonstrate that it is causal and passive. An electromagnetic absorber is constructed with this time-derivative Lorentz material, and simulations are given which illustrate its effectiveness under illumination by obliquely incident, ultrafast, pulsed Gaussian beams having narrow and broad waists.

Original language | English (US) |
---|---|

Pages (from-to) | 7696-7703 |

Number of pages | 8 |

Journal | Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics |

Volume | 55 |

Issue number | 6 SUPPL. B |

State | Published - 1997 |

### Fingerprint

### ASJC Scopus subject areas

- Physics and Astronomy(all)
- Condensed Matter Physics
- Statistical and Nonlinear Physics
- Mathematical Physics

### Cite this

**Time-derivative Lorentz materials and their utilization as electromagnetic absorbers.** / Ziolkowski, Richard W.

Research output: Contribution to journal › Article

*Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics*, vol. 55, no. 6 SUPPL. B, pp. 7696-7703.

}

TY - JOUR

T1 - Time-derivative Lorentz materials and their utilization as electromagnetic absorbers

AU - Ziolkowski, Richard W

PY - 1997

Y1 - 1997

N2 - A time-derivative Lorentz material model is introduced for the polarization and magnetization fields in a complex medium illuminated by an ultrafast pulsed beam. This model represents a straightforward generalization of the standard Lorentz material model to include the time derivatives of the fields as driving mechanisms. The Green function for this material is derived and used to demonstrate that it is causal and passive. An electromagnetic absorber is constructed with this time-derivative Lorentz material, and simulations are given which illustrate its effectiveness under illumination by obliquely incident, ultrafast, pulsed Gaussian beams having narrow and broad waists.

AB - A time-derivative Lorentz material model is introduced for the polarization and magnetization fields in a complex medium illuminated by an ultrafast pulsed beam. This model represents a straightforward generalization of the standard Lorentz material model to include the time derivatives of the fields as driving mechanisms. The Green function for this material is derived and used to demonstrate that it is causal and passive. An electromagnetic absorber is constructed with this time-derivative Lorentz material, and simulations are given which illustrate its effectiveness under illumination by obliquely incident, ultrafast, pulsed Gaussian beams having narrow and broad waists.

UR - http://www.scopus.com/inward/record.url?scp=0001608751&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001608751&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0001608751

VL - 55

SP - 7696

EP - 7703

JO - Physical review. E

JF - Physical review. E

SN - 2470-0045

IS - 6 SUPPL. B

ER -