Triple-pulse integrated path differential absorption lidar for carbon dioxide measurement - Novel lidar technologies and techniques with path to space. - Upendra N. Singh; Tamer F. Refaat; Mulugeta Petros (IGARSS, 2017)

MCT Avalanche Photodiode Detector FOR Two-MICRON Active Remote Sensing Applications. - Tamer F. Refaat; Upendra N. Singh; Mulugeta Petros; Ruben G. Remus (IGARSS, 2018)

Water Vapor Column Measurements With Infrared Active Optical IPDA Lidar. - Upendra N. Singh; Syed Ismail; Tamer F. Refaat; Mulugeta Petros (IGARSS, 2018)

Evaluation of 2-μm Pulsed Integrated Path Differential Absorption Lidar for Carbon Dioxide Measurement - Technology Developments, Measurements, and Path to Space. - Upendra N. Singh; Tamer F. Refaat; Mulugeta Petros; Syed Ismail (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2018)

Frequency Control of Multi-Pulse 2-micron Laser Transmitter for Atmospheric Carbon Dioxide Measurement. - Mulugeta Petros; Tamer F. Refaat; Upendra N. Singh; Charles W. Antill; Ruben G. Remus; Teh-Hwa Wong; Jane Lee; Syed Ismail (IGARSS, 2019)

Ground Testing of 2μm Triple-Pulse IPDA Lidar for Carbon Dioxide and Water Vapor Measuremets. - Tamer F. Refaat; Mulugeta Petros; Upendra N. Singh; Charles W. Antill; Ruben G. Remus; Syed Ismail (IGARSS, 2019)

High-Precision and High-Accuracy Column Dry-Air Mixing Ratio Measurement of Carbon Dioxide Using Pulsed 2- $ mu$ m IPDA Lidar. - Tamer F. Refaat; Mulugeta Petros; Upendra N. Singh; Charles W. Antill; Ruben G. Remus (IEEE Trans. Geosci. Remote. Sens., 2020)