The Optics and Lasers Physics Program conducts research that relates to a wide variety of issues, pertaining to the exciting fields of optical systems, nonlinear optics, laser physics, laser spectroscopy and optical sensing. We apply computational techniques and machine-learning algorithms to solve difficult problems in optical design and theoretical optics. We develop and characterize nonlinear optical materials for optical switching and power limiting applications using wavelength tunable Z-scan, degenerate four wave mixing, and power limiting spectroscopy. Laser materials research is directed towards the development and investigation of novel vibronic active media for tunable lasers, passive Q-switches, and mode lockers. Laser physics research includes spatially dispersive multiline and ultraboradband lasers, tunable near infrared color center lasers, optically and electrically pumpable broadly tunable mid-IR lasers based on II-VI wide band semiconductors doped with transition metal ions, the development of laser based techniques for environmental monitoring and medical diagnostics on the micro- and macroscopic levels, as well as Raman characterization of protein crystals, and developing of time-resolved laser induced fluorescence and Raman spectroscopy of normal and malignant tissues. The optics and lasers physics faculty are leading force oftheMulti-Institutional NSF funded “Center for Optical Sensors and Spectroscopies” to develop laser and fiber optic spectroscopic sensors for detection of explosives and chemical and biological toxins.