Improvement of terahertz imaging using lock-in techniques

被引：0
|
作者：
Kowalski, M. [1 ]
Coquillat, D. [2 ]
Zagrajek, P. [1 ]
Knap, W. [2 ]
机构：
[1] Mil Univ Technol, Warsaw, Poland
[2] Univ Montpellier 2, Montpellier, France
来源：
2015 40TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ) | 2015年
关键词：
THZ; FUSION;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present results of improvement of THz images registered at the frequency of 300 GHz. The improvement is achieved by processing of both phase and magnitude information provided by lock-in amplifier. The active imager uses a continuous-wave tunable radiation source. We investigate capabilities of utilizing phase and intensity information in order to obtain more accurate shape of object. Results of processing images in order to obtain more details are shown. Improvement of the image resolution and quality by composition of selected elements of both amplitude and phase-based images using specific fusion methods is presented.
引用
收藏
页数：2
相关论文
共 50 条
  • [1] Imaging through fog using quadrature lock-in discrimination
    Kumar, Shashank
    Debnath, Bapan
    Meena, M. S.
    Fade, Julien
    Dhar, Sankar
    Alouini, Mehdi
    Bretenaker, Fabien
    Ramachandran, Hema
    OSA CONTINUUM, 2021, 4 (05): : 1649 - 1657
  • [2] Depth-gated imaging using lock-in holography
    Mahon, R
    Rabinovich, WS
    Bashkansky, M
    Bowman, SR
    Ikossi-Anastasiou, K
    Katzer, DS
    JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2002, 19 (07) : 1685 - 1691
  • [3] Lock-in thermal wave imaging
    Zhong, OY
    Li, W
    Xun, W
    Feng, Z
    Favro, LD
    Kuo, PK
    Thomas, RL
    REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 16A AND 16B, 1997, 16 : 383 - 387
  • [4] Transient Absorption Microscopy Using Widefield Lock-in Camera Imaging
    Wilson, Kelly S.
    Volek, Tanner S.
    Gross, Niklas
    Link, Stephan
    Baiz, Carlos R.
    Roberts, Sean T.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2024, 128 (28): : 11723 - 11731
  • [5] Enhancing the Amplitude of Terahertz Transients Using Lock-In Amplification and a Spinning Nonlinear Crystal
    Schneider, Arno
    IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, 2014, 4 (05) : 605 - 608
  • [6] Imaging Physical Parameters of Pre-Breakdown Sites by Lock-in Thermography Techniques
    Breitenstein, O.
    Bauer, J.
    Wagner, J. -M.
    Lotnyk, A.
    PROGRESS IN PHOTOVOLTAICS, 2008, 16 (08): : 679 - 685
  • [7] Lock-in thermal IR imaging using a solid immersion lens
    Breitenstein, O.
    Altmann, F.
    Riediger, T.
    Karg, D.
    Gottschalk, V.
    MICROELECTRONICS RELIABILITY, 2006, 46 (9-11) : 1508 - 1513
  • [8] Polarization imaging using active illumination and lock-in like algorithms
    Gypson, M
    Dobbs, M
    Pruitt, J
    Neff, B
    Fennelly, J
    POLARIZATION SCIENCE AND REMOTE SENSING, 2003, 5158 : 161 - 167
  • [9] Photoacoustic imaging using lock-in amplification and pulsed fiber lasers
    Shi, Wei
    Hajireza, Parsin
    Zemp, Roger
    PHOTONS PLUS ULTRASOUND: IMAGING AND SENSING 2016, 2016, 9708
  • [10] Lock-in detector for accelerated nonlinear imaging
    Purz, Torben L.
    Cundiff, Steven T.
    Martin, Eric W.
    OPTICS LETTERS, 2021, 46 (19) : 4813 - 4816
12345