Research in Professor Momose's group is focused on physics and chemistry of extremely cold molecules. Molecules at very cold temperatures are expected to behave quite differently from those at high temperatures. For example, a significant enhancement of reaction cross section is expected for some systems below 10 K because of the tunneling process and resonance effect. However, little is known about the intrinsic properties of cold molecules because it is still difficult to make and observe cold molecules in the laboratory. We are now developing new techniques to make cold and ultra-cold molecules in order to elucidate special properties of cold molecules by means of spectroscopic detection. The project is supported by CFI (Canada Foundation for Innovation) under CRUCS (Canadian Centre for Researches on Ultra-Cold Systems).