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Bio-Medical Imaging with a Terahertz Quantum Cascade Laser

机译:太赫兹量子级联激光器的生物医学成像

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摘要

We investigated and demonstrated bio-medical imaging using a THz quantum cascade laser. With the THz quantum cascade laser (QCL) at 3.8 THz, we obtained large dynamic range and high spatial resolution in the transmission imaging technique. The various tissues images, such as lung, liver, and brain sections from the laboratory mouse were obtained and studied. The most important factor for this imaging scheme is to obtain high contrast with different absorption characteristics in tissues. We explored distinct images from the fat, muscles and tendon from the freshly cut tissues and investigated absorption coefficient and compared with FTIR measurement. We also demonstrated the image of distinct region of tumors progressed and normal tissues using this technique. The comparison of frequency dependent medical imaging with utilizing different wavelength of QCLs has been addressed.
机译:我们研究并证明了使用太赫兹量子级联激光器的生物医学成像。使用3.8 THz的THz量子级联激光器(QCL),我们在透射成像技术中获得了较大的动态范围和较高的空间分辨率。获得并研究了来自实验小鼠的各种组织图像,例如肺,肝和脑切片。该成像方案的最重要因素是获得具有不同吸收特性的组织中的高对比度。我们探索了来自新鲜切开组织的脂肪,肌肉和肌腱的独特图像,并研究了吸收系数,并与FTIR测量进行了比较。我们还证明了使用这种技术的肿瘤进展和正常组织的不同区域的图像。已经解决了利用不同波长的QCL进行频率依赖性医学成像的比较。

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