Spectrum-shape-controllable near-infrared light source based on multi-color quantumdots monolithically grown in selective areas

我们开发了一种基于InAs/GaAs量子点（QDs）的近红外宽带光源，用于光学相干断层扫描（OCT）。自组装InAs-QDs具有OCT成像的有用特征：在生物样品中具有长穿透深度的发射，并且由于其一定的尺寸分布而具有宽带光谱。我们利用我们开发的技术实现了不同发射波长的InAs-QDs的单片生长，从而实现了宽带和光谱形状可控的光源。这证明了新型近红外光源获得高质量oct图像的潜力。

We have developed a near-infrared broadband light source based on InAs/GaAs quantum dots (QDs) for optical coherence tomography (OCT).Self-assembled InAs-QDs possessuseful features for the OCT imaging: emissionswith long penetration depth in bio-samples and withbroadband spectrumdue to theircertain size distribution.We realized a broadband and spectrum-shape-controllable light source by using our developedtechnique formonolithic growth of InAs-QDs with different emission wavelengths. Thisdemonstrates a potentialfor novel NIR light source to obtainhigh qualityOCT images.