Time resolved measurements which isolate the mechanisms responsible for terahertz glory scattering from dielectric spheres

被引：42

作者：

Cheville, RA ^{[1
]}

McGowan, RW

Grischkowsky, D

机构：

[1] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA

[2] Oklahoma State Univ, Ctr Laser & Photon Res, Stillwater, OK 74078 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.80.269

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The surface-wave scattering processes responsible, in part, for the optical glory have never been compared with theoretical predictions. Here, THz impulse ranging is used to measure the time domain impulse response of spherical targets with sufficiently high temporal resolution to permit the surface-wave contribution to the total impulse response to be isolated. The first direct experimental comparison for the surface wave with Mie theory as well as the surface-wave approximation of van de Hulst is performed. Interference of the surface waves from a dielectric sphere is shown to lead to the frequency and angular intensity dependence of the THz glory.

引用

页码：269 / 272

页数：4

共 19 条

[1] Barrick D. E., 1970, RADAR CROSS SECTION, V1
[2] CARIN L, 1993, ULTRA-WIDEBAND, SHORT-PULSE ELECTROMAGNETICS, P37
[3] TIME-DOMAIN TERAHERTZ IMPULSE RANGING STUDIES
CHEVILLE, RA
GRISCHKOWSKY, D
[J]. APPLIED PHYSICS LETTERS, 1995, 67 (14) : 1960 - 1962
[4] Late-time target response measured with terahertz impulse ranging
Cheville, RA
McGowan, RW
Grischkowsky, DR
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1997, 45 (10) : 1518 - 1524
[5] A TIME DOMAIN TECHNIQUE FOR MECHANISM EXTRACTION
DOMINEK, AK
PETERS, L
BURNSIDE, WD
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1987, 35 (03) : 305 - 312
[6] FAHRLEN TS, 1968, J OPT SOC AM, V58, P304
[7] BACKSCATTERED SHORT PULSE RESPONSE OF SURFACE-WAVES FROM DIELECTRIC SPHERES
INADA, H
[J]. APPLIED OPTICS, 1974, 13 (08): : 1928 - 1933
[8] Response of a dielectric sphere for electromagnetic pulsed wave - Cases of back- and forward-scattering
Itoh, A
Hosono, T
[J]. ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS, 1995, 78 (11): : 10 - 23
[9] INTERNAL AND SCATTERED TIME-DEPENDENT INTENSITY OF A DIELECTRIC SPHERE ILLUMINATED WITH A PULSED GAUSSIAN-BEAM
KHALED, EEM
CHOWDHURY, DQ
HILL, SC
BARBER, PW
[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1994, 11 (07): : 2065 - 2071
[10] THEORY OF GLORY
KHARE, V
NUSSENZVEIG, HM
[J]. PHYSICAL REVIEW LETTERS, 1977, 38 (22) : 1279 - 1282

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