Abstract: A liquid sample carrier includes a first base that includes a first carrying portion having a first sample holding surface, and a second base that is connectable to the first base and that includes a second carrying portion, a support layer, and a second sample holding surface. The second carrying portion is stackable on the first carrying portion, and has a surrounding wall defining a through hole. The support layer is connected to the second carrying portion and has a window area corresponding to the through hole, and a peripheral area surrounding the window area. The second sample holding surface is connected to the support layer. A sample receiving area is formed between the first and second sample holding surfaces.