(52) US Cl........................................ 356,437; 250/330 A system is described that is suitable for
use in determining (58) Field of Classification Search................ 356/437; the location of leaks …

A sensitive CW laser absorption diagnostic for in-situ measurement of methane mole fraction
at high temperatures is developed. The selected transitions for the diagnostic are a cluster of …

We demonstrate hybridly integrated narrow-linewidth, tunable diode lasers in the InP/GaAs-
Si_3N_4 platform. Silicon nitride photonic integrated circuits, instead of silicon waveguides …

S. coarse eter that is field portable and capable of Speciating complex organic molecules in
the gas phase. The Spectrometer has a tunable light source that has the ability to resolve the …

A mid-infrared laser-based sensor is reported for the quantification of fugitive methane
emissions. The sensor is based on a distributed feedback inter-band cascade laser …

A novel, mid-IR scanned-wavelength laser absorption diagnostic was developed for time-
resolved, interference-free, absorption measurement of methane concentration. A differential …

A framework for the study of high-temperature hydrocarbon pyrolysis is presented. The
proposed framework details a multi-wavelength speciation method using convex …

The availability of continuously tunable narrow-band laser sources emitting in the mid-
infrared region of the electromagnetic spectrum between 2.5 μm and 15 μm is important for a …

The location of gases that are not visible to the unaided human eye can be determined
using tuned light sources that spectroscopically probe the gases and cameras that can …

We demonstrate a compact mid-infrared (mid-IR) radiation source based on difference
frequency generation (DFG) in periodically poled lithium niobate (PPLN) crystal. The system …