Photoswitching with additives: DASA-2 in DCM with additives

Timepoints: 25 prepoints, scans every 1 s 150 pts irradiation with 617 nm, scans every 1 s 1080 pts in dark after irradiation, scans every 5 s

时间采集参数如下：预扫描阶段设置25个预扫描点（prepoints），扫描间隔为1秒；在617 nm波长光源辐照期间，扫描间隔为1秒，共计采集150个数据点（points，简称pts）；辐照结束后转入暗环境，扫描间隔为1秒，共计采集1080个数据点，后续扫描间隔调整为5秒。