Figure 2
Double-sided laser heating system installed in the station 13-ID-D. Lines in red are laser guiding paths. Lines in green are those of thermal radiation for temperature measurements. wp, wave plate for changing polarization direction; pd, photodiode for monitoring laser power; bs1, bs2, bs3, polarizing cube beam splitters for beam splitting and power regulation; sp, spectrometer for temperature measurement; pmt, photomultiplier tube; ccd, CCD camera. The red donut symbol stands for the laser operating in TEM01* mode. The red dot is the laser operating in Gaussian mode. He-Ne is the class-II He-Ne laser for alignment purpose. |