Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Robert D. Stahl"'
Autor:
Mark C. Phillips, John T. Schiffern, Bruce E. Bernacki, Matthew S. Taubman, Robert D. Stahl, Tanya L. Myers, Ian M. Craig, Bret D. Cannon
Publikováno v:
Applied Physics B. 120:505-515
We demonstrate a sensor based on tunable diode laser absorption spectroscopy for the detection of hydrogen fluoride (HF) gas at ambient pressure. Absorption from the HF R(1) ro-vibrational peak at ν = 4038.962 cm−1 (2.476 µm) in the fundamental (
Publikováno v:
The Review of scientific instruments. 85(1)
We present a precision, 1-A, digitally interfaced current controller for quantum cascade lasers, with demonstrated temperature coefficients for continuous and 40-kHz full-depth square-wave modulated operation, of 1–2 ppm/ °C and 15 ppm/ °C, respe
Autor:
Mark C. Phillips, Tanya L. Myers, John T. Schiffern, Matthew S. Taubman, Bruce E. Bernacki, Robert D. Stahl, Bret D. Cannon
Publikováno v:
Quantum Sensing and Nanophotonic Devices IX.
A multi-channel laser-based chemical sensor platform is presented, in which a modular architecture allows the exchange of complete sensor channels without disruption to overall operation. Each sensor channel contains custom optical and electronics pa
Autor:
Robert D. Stahl, Bret D. Cannon, Matthew S. Taubman, Tanya L. Myers, Bruce E. Bernacki, Mark C. Phillips, John T. Schiffern
Publikováno v:
The Analyst. 139:2047
We present results demonstrating real-time sensing of four different fluorocarbons at low part-per billion (ppb) concentrations using an external cavity quantum cascade laser (ECQCL) designed for infrared vibrational spectroscopy of molecules with br