Comparison between pulsed terahertz time-domain imaging and continuous wave terahertz imaging

Karpowicz, Nicholas; Zhong, Hua; Xu, Jun; Lin, Kwang‐Lung; Hwang, Jenn-Shyong; Zhang, Xicheng

doi:10.1088/0268-1242/20/7/021

Cited by 202 publications

(120 citation statements)

References 43 publications

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“…63-65, 69, and 70]). These de− tectors are used either in TDS applications and imaging ap− plications [71][72][73][74].…”

Section: Photoconductive Broadband Thz Antenna Sensorsmentioning

confidence: 99%

THz radiation sensors

Сизов

2010

Opto-Electronics Review

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In the paper, issues associated with the development and exploitation of terahertz (THz) radiation detectors are discussed. The paper is written for those readers who desire an analysis of the latest developments in different type of THz radiation sensors (detectors), which play an increasing role in different areas of human activity (e.g., security, biological, drugs and explosions detection, imaging, astronomy applications, etc.). The basic physical phenomena and the recent progress in both direct and heterodyne detectors are discussed. More details concern Schottky barrier diodes, pair braking detectors, hot electron mixers, and field-effect transistor detectors. Also the operational conditions of THz detectors and their upper performance limits are discussed.

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“…63-65, 69, and 70]). These de− tectors are used either in TDS applications and imaging ap− plications [71][72][73][74].…”

Section: Photoconductive Broadband Thz Antenna Sensorsmentioning

confidence: 99%

THz radiation sensors

Сизов

2010

Opto-Electronics Review

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“…There are two main type of THz instruments and the use of each one depends on the specific goals of the examination [46], Figure 2. Time-domain based spectrometers (TDS) use short pulses (few picoseconds) to create an instantaneous wide frequency spectrum covering usually up to 3 THz.…”

Section: Time-domain or Frequency-domainmentioning

confidence: 99%

Terahertz and Cultural Heritage Science: Examination of Art and Archaeology

Cosentino¹

2016

Technologies

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Cultural Heritage scientists need methodologies to examine Art and Archaeology in order to understand artistic materials and techniques and devise better conservation procedures. This review discusses the most successful and promising applications of Terahertz (THz) technology in Cultural Heritage Science. THz is used in homeland security and for plenty of other industrial sectors and it presents a number of valuable features specifically for the investigation of Art and Archaeology: No radiation risk, low power, non-contact and reflection mode. Recent technical advancements are also making its application fast, mobile and relatively affordable creating a potential for its diffused implementation in museums. While THz is most promising for the investigation of multilayered art, such as paintings, it has been tested on a very large range of artifacts, from manuscripts to mummies and lacquered historical furniture.

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“…This significantly simplifies the hardware implementation. In comparison to the use of a pulsed technique [9], the Indirect Microwave Holographic Imaging approach uses continuous wave (CW) signals which reduces its cost by a factor of up to six [15]. Central to this technique is the use of a Synthesised Reference Beam developed and patented at Northumbria University [16].…”

Section: Introductionmentioning

confidence: 99%

Early Stage Breast Cancer Detection Using Indirect Microwave Holography

Elsdon¹,

Yurduseven²,

Smith³

2013

PIER

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Abstract-A novel microwave imaging approach for early stage breast cancer detection is described. The proposed technique involves the use of an Indirect Microwave Holographic technique employing a patented synthetic reference wave. This approach offers benefits in terms of simplicity, expense, comfort and safety when compared to current mammography techniques. Experimental results using a simulated breast phantom are included to demonstrate the validity of this technique to obtain 2D images. The technique is then extended to demonstrate the possibility of obtaining 3D images by using indirect stereoscopic holographic imaging.

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Comparison between pulsed terahertz time-domain imaging and continuous wave terahertz imaging

Cited by 202 publications

References 43 publications

THz radiation sensors

THz radiation sensors

Terahertz and Cultural Heritage Science: Examination of Art and Archaeology

Early Stage Breast Cancer Detection Using Indirect Microwave Holography

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