Polarisation effects in reflection of ultrashort single-cycle pulses from semiconductors and metals

Journal Article · Wed Mar 31 00:00:00 EST 1999 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE1999V029N03ABEH001450· OSTI ID:21439470

Shvartsburg, Aleksandr B ^[1]

---

1. Central Design Bureau for Unique Instrumentation, Russian Academy of Sciences, Moscow (Russian Federation)

A model, capable of providing an analytic solution, is proposed for describing the reflection and refraction of polarised ultrashort single-cycle pulses (i.e. pulses with durations as short as one or several oscillations of the field) with an asymmetric nonsinusoidal envelope on the surfaces of dispersive and conducting media. The fields excited by single-cycle pulses in these media are represented by novel transient solutions of the Maxwell equations, obtained directly in the time domain without separation of variables and without Fourier expansions. This approach yields simple formulas for the reflection coefficients of s- and p-polarised single-cycle pulses with Laguerre envelopes, incident at arbitrary angles. The Fresnel, Snell, and Brewster formulas are generalised. It is shown that the reflection coefficients and the angles of refraction of a single-cycle pulse depend on the characteristic duration of the envelope of such a pulse and on the relaxation time of the field in the investigated medium. (invited paper)

• OSTI ID: 21439470
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 29, Issue 3; Other Information: DOI: 10.1070/QE1999v029n03ABEH001450; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANALYTICAL SOLUTION
ASYMMETRY
FOURIER ANALYSIS
MAXWELL EQUATIONS
METALS
OSCILLATIONS
POLARIZATION
PULSES
REFLECTION
REFRACTION
RELAXATION TIME
SEMICONDUCTOR MATERIALS
SURFACES
DIFFERENTIAL EQUATIONS
ELEMENTS
EQUATIONS
MATERIALS
MATHEMATICAL SOLUTIONS
PARTIAL DIFFERENTIAL EQUATIONS