Optically Pumped Carbon Monoxide Cascade Laser

Abstract

The experimental and theoretical results of an optically pumped vibrational CO laser are explored. A tunable 1550-1580nm optical parametric oscillator laser was used as a pulsed pump source. The OPO pumped the R(6) through R(9) (3,0) overtone band of the CO, which induced lasing on the (3,2) and (2,1) bands around 4.7um. The laser output was spectrally separated to determine the spectral and temporal evolution of the CO lasing pulse. The influence of CO pressure, cell length, pump pulse intensity, and the resonator Q-Factor on the CO laser pulse temporal profile and spectral distribution were studied. A numerical model was developed, and the experimental results are compared to the model predictions. vi

An Assessment of the Academic Supports Provided to African American Female Students in Undergraduate, Pre-professional Architecture Programs

“…Historically Black colleges and universities (HBCUs) have been statistically more successful at providing a more collegial and supportive learning environment for students of color, particularly women. 25 Yet, the responsibility for providing supportive, inclusive environments for African American women should not be the exclusive domain of professional programs at Historically Black Colleges and Universities (HBCU)s. 26 As such, concerned administrators and faculty at PWIs could look to successful programs at HBCUs to help inform their methods and means, when facilitating diverse learning environments. 27 In this way, it is very feasible for architecture programs at PWIs to provide students of color, especially women, with the academic, professional, and social supports necessary to both acclimate and identify with their collegiate environments.…”