The invention is directed to a compact optically side-pumped solid-state laser with an optimized overlap between the mode of the laser beam propagating in the laser material and the pump beam. A control unit is configured to sequentially measure the plurality of prepared measurement samples, obtain a plurality of measurement data for the respective measurement samples, and obtain an analysis result of a predetermined item of the sample based on the plurality of measurement data. , as a natively executable application, as a client-side interpretable application embedded in a web browser, or as a server-side application that communicates with the user through a web interface presented on a device. Furthermore, recording is done in the contiguous data area units and a collection of the contiguous data area units is organized into the file unit. The lever member has an operation surface to be pressed, and the operation surface includes an inclined surface sloped downward toward a side where an operator would face.