東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Multiple scattering of broadband ter...

Pearce, Jeremiah Glen.

FindBook

Google Book

Amazon

博客來

Multiple scattering of broadband terahertz pulses.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Multiple scattering of broadband terahertz pulses./
作者:	Pearce, Jeremiah Glen.
面頁冊數:	118 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-03, Section: B, page: 1635.
Contained By:	Dissertation Abstracts International66-03B.
標題:	Engineering, Electronics and Electrical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3168121
ISBN:	054203798X

Multiple scattering of broadband terahertz pulses.
Pearce, Jeremiah Glen.

Multiple scattering of broadband terahertz pulses. - 118 p.

Source: Dissertation Abstracts International, Volume: 66-03, Section: B, page: 1635.

Thesis (Ph.D.)--Rice University, 2005.

Propagation of single-cycle terahertz (THz) pulses through a random medium leads to dramatic amplitude and phase variations of the electric field because of multiple scattering. We present the first set of experiments that investigate the propagation of THz pulses through scattering media. The scattering of short pulses is a relevant subject to many communities in science and engineering, because the properties of multiply scattered or diffuse waves provide insights into the characteristics of the random medium. For example, the depolarization of diffuse waves has been used to form images of objects embedded in inhomogeneous media.

ISBN: 054203798XSubjects--Topical Terms:

626636
Engineering, Electronics and Electrical.

Multiple scattering of broadband terahertz pulses.
LDR:03170nmm 2200313 4500 001 1815984
005 20060717150831.5
008 130610s2005 eng d
020 $a 054203798X
035 $a (UnM)AAI3168121
035 $a AAI3168121
040 $a UnM $c UnM
100 1 $a Pearce, Jeremiah Glen. $3 1905384
245 1 0 $a Multiple scattering of broadband terahertz pulses.
300 $a 118 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-03, Section: B, page: 1635.
500 $a Chair: Daniel M. Mittleman.
502 $a Thesis (Ph.D.)--Rice University, 2005.
520 $a Propagation of single-cycle terahertz (THz) pulses through a random medium leads to dramatic amplitude and phase variations of the electric field because of multiple scattering. We present the first set of experiments that investigate the propagation of THz pulses through scattering media. The scattering of short pulses is a relevant subject to many communities in science and engineering, because the properties of multiply scattered or diffuse waves provide insights into the characteristics of the random medium. For example, the depolarization of diffuse waves has been used to form images of objects embedded in inhomogeneous media.
520 $a Most of the previous scattering experiments have used narrowband optical radiation where measurements are limited to time averaged intensities or autocorrelation quantities, which contain no phase information of the pulses. In the experiments presented here, a terahertz time-domain spectrometer (THz-TDS) is used. A THz-TDS propagates single-cycle sub-picosecond pulses with bandwidths of over 1 THz into free space. The THz-TDS is a unique tool to study such phenomena, because it provides access to both the intensity and phase of those pulses through direct measurement of the temporal electric field. Because of the broad bandwidth and linear phase of the pulses, it is possible to simultaneously study Rayleigh scattering and the short wavelength limit in a single measurement.
520 $a We study the diffusion of broadband single-cycle THz pulses by propagating the pulses through a highly scattering medium. Using the THz-TDS, time-domain measurements provide information on the statistics of both the amplitude and phase of the diffusive waves. We develop a theoretical description, suitable for broadband radiation, which accurately describes the experimental results. We measure the time evolution of the degree of polarization, and directly correlate it with the single-scattering regime in the time domain. Measurements of the evolution of the temporal phase of the radiation demonstrate that the average spectral content depends on the state of polarization. In the case of broadband radiation, this effect distinguishes photons that have been scattered only a few times from those that are propagating diffusively.
590 $a School code: 0187.
650 4 $a Engineering, Electronics and Electrical. $3 626636
650 4 $a Physics, Electricity and Magnetism. $3 1019535
650 4 $a Physics, Optics. $3 1018756
690 $a 0544
690 $a 0607
690 $a 0752
710 2 0 $a Rice University. $3 960124
773 0 $t Dissertation Abstracts International $g 66-03B.
790 1 0 $a Mittleman, Daniel M., $e advisor
790 $a 0187
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3168121