多光子显微镜:大脑中的神经元和轴突
认识大脑需要记录大量神经元的活动,实现该目标需要具有微米量级分辨率、深层成像和活体测量的成像技术,而多光子激光扫描显微镜是目前主要的技术手段。我们开发的自适应飞秒激光源将双光子和三光子的光功率降低为原有的1/30,从而在不损伤大脑的情况下,提高成像速度、增大视场、增加成像深度和降低了激光器的成本。该工作发表在Nature Methods期刊,被Nature、Science、OPN、OSA Plenary talk、SPIE Hot Topic等报道,是突破神经元成像瓶颈的关键技术。
相关论文:
1. B. Li, C. Wu, M. Wang, K. Charan, and C. Xu, “An adaptive excitation source for high speed multiphoton microscopy,” Nature Methods, vol. 17, pp. 163-166, 2020.
2. M. Wang, C. Wu, D. Sinefeld, B. Li, F. Xia and C. Xu, “Comparing the effective attenuation lengths for long wavelength in vivo imaging of the mouse brain,” Biomedical Optics Express, vol. 9, pp. 3534-3543, 2018.
3. F. Xia, C. Wu, D. Sinefeld, B. Li, Y. Qin and C. Xu, “In vivo label-free confocal imaging of the deep mouse brain with long-wavelength illumination,” Biomedical Optics Express, vol. 9, pp. 6545-6555, 2018.