We have recently launched brand new studies of single-object and nano-scale optical spectroscopy. New highly-sensitive spectroscopic techniques have been developed. We particularly focus on investigating fundamental properties in nanometer scale and on applying these innovative techniques in biomedical applications.
	Versatile two-color ultrafast pump-probe spectroscopic techniques are developed to investigate interfacial charge and energy relaxation processes occurring in various photovoltaic systems.
	Innovative high-prevision phase-retrieval spectroscopic technique is developed to reveal fundamental phenomena taking place during the coherent interaction between ultrashort laser pulses and excitonic/plasmonic nanostructural systems.
	Highly non-equilibrium behaviors of condensed matters induced by intense laser pulses are investigated with innovative ultrafast optical probes. The focus is on investigating the fundamental mechanisms which leads to high precision material processing.
	Vibrational spectra of adsorbed surfaces are studied by surface Raman scattering and infrared absorption spectroscopy and are used to probe surface reaction kinetics.
	Various spectroscopic techniques and instruments are developed and installed to investigate fundamental physical and chemical processes which are essential to the development of organic electronic components.
	Innovative vibrational spectroscopic techniques are developed to enhance the detection of chemical and biological species, leading to applications in disease diagnosis, pathogen sensing and environmental monitoring.

	Ultrafast spectroscopic techniques are employed to study dynamics of photoinduced conformation change in conjugated oligomers.
	Widely tunable femtosecond pulses are exploited to study carrier dynamics of semiconductors and semiconductor nano-structures.
	Vibrational energy and phase relaxation of surface molecules are studied by surface-sensitive laser spectroscopy.