Cavity-enhanced absorption
Simultaneous detection of C2H6, CH4, and δ13C-CH4 using optical feedback cavity-enhanced absorption spectroscopy in the mid-infrared region: towards application for dissolved gas measurements
... operations. Cavity-based techniques such as cavity ring- down spectroscopy (CRDS) and cavity-enhanced absorption spectroscopy (CEAS) offer detection of a variety of species, ...
9
A calibration method for broad-bandwidth cavity enhanced absorption spectroscopy performed with supercontinuum radiation
... effective absorption length in broadband cavity enhanced absorption spectroscopy using supercontinuum ...the cavity and the cavity enhanced absorption measurement ...
8
Development of a cavity-enhanced absorption spectrometer for airborne measurements of CH 4and CO2
... were made on board the FAAM BAe-146 UK (Facility for Airborne Atmospheric Measurements, British Aerospace- 146) atmospheric research aircraft during a number of field campaigns. The system was based on an infrared ...
15
An aircraft based three channel broadband cavity enhanced absorption spectrometer for simultaneous measurements of NO 3 N 2O5 and NO 2
... broadband cavity enhanced absorption spectroscopy (BBCEAS) which was first reported in the literature by Fiedler et ...resolved absorption spectra, which can be used to simultaneously and ...
18
Broadband cavity-enhanced absorption spectroscopy in the ultraviolet spectral region for measurements of nitrogen dioxide and formaldehyde
... Broadband cavity-enhanced absorption spectroscopy (BBCEAS) is a sensitive technique for direct absorption ...optical cavity (Fiedler et al., 2003). The light output from the ...
12
Development of an incoherent broadband cavity-enhanced absorption spectrometer for measurements of ambient glyoxal and NO2 in a polluted urban environment
... optical absorption spectroscopy (DOAS), laser-induced fluorescence (LIF) and incoherent broadband cavity-enhanced absorption spectroscopy (IB- ...open cavity mode with a detection limit ...
14
A broadband cavity enhanced absorption spectrometer for aircraft measurements of glyoxal, methylglyoxal, nitrous acid, nitrogen dioxide, and water vapor
... Broadband cavity enhanced absorption spectroscopy (BBCEAS) belongs to a class of techniques that use high- finesse optical cavities to achieve sensitive measurements of optical extinction (Fiedler et ...
18
Study of a periodic spectral fluctuation existing in a fibered optical feedback cavity-enhanced absorption spectroscopy (OF-CEAS)
... laser absorption spectroscopy using high finesse optical resonant cavity, representatively, cavity- enhanced absorption spectroscopy (CEAS) and cavity ring- down spectroscopy ...
9
Comparison of optical-feedback cavity-enhanced absorption spectroscopy and gas chromatography for ground-based and airborne measurements of atmospheric CO concentration
... optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) technique, against a high-performance automated gas chromatograph (GC) with a mercuric oxide reduction gas detector ...
10
Development of a portable cavity-enhanced absorption spectrometer for the measurement of ambient NO 3and N 2O5 : experimental setup, lab characterizations, and field applications in a polluted urban environment
... vapour absorption can be determined with an “effec- tive” water vapour absorption cross section from a look-up table approach or a real-time iterative calculation approach under atmospheric conditions ...
15
Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO2
... 0.40 nm FWHM. The reference spectrum adjustment param- eters such as central wavelength shift and the peak squeeze were considered within the retrieval software and a fifth- order polynomial was used to account for ...
13
A cavity ring down/cavity enhanced absorption device for measurement of ambient NO
... optical cavity consists of two, 1 inch di- ameter dielectric mirrors (radius of curvature=1 m, reflectiv- ity ≈ 99 998, Los Gatos Research) located ≈ 70 cm apart in home built mounts (see inset to ...the ...
13
The ICAD (iterative cavity-enhanced DOAS) method
... optical cavity, consisting typically of two highly reflective mirrors where light is reflected forward and backwards, and at each reflection a small part of the light is transmitted through the mirror ...the ...
17
Development of a cavity-enhanced aerosol albedometer
... a cavity- enhanced aerosol single-scattering albedometer based on incoherent broadband cavity-enhanced absorption spec- troscopy (IBBCEAS) combined with an integrating sphere (IS) for ...
16
An instrument for measurements of BrO with LED-based Cavity-Enhanced Differential Optical Absorption Spectroscopy
... so-called cavity-enhanced absorption spectroscopy (CEAS), was developed, which relies on mea- suring the transmittance of the resonator by recording the leak-out intensity (Engeln et ...
16
Size dependent visible absorption and fast photoluminescence decay dynamics from freestanding strained silicon nanocrystals
... strain-induced, enhanced quantum confinement- related, widened band gap states are responsible for the distinct visible absorption and an intense visible PL at 580-585 nm from the freestanding Si ...the ...
7
Cavity enhanced simultaneous dressing of quantum dot exciton and biexciton states
... Our paper is organized as follows. In Sec. II, we in- troduce the sample, the optical setup and the QD-cavity system under investigation. In Sec. III we first demon- strate two-photon excitation of the biexciton ...
10
Resonant cavity enhanced photodiodes on GaSb for the mid wave infrared
... IR absorption signatures, the detection of these substances is a further ...resonant cavity enhanced (RCE) photodiodes can offer high spectral discrimination and reduced dark currents and noise ...
12
Design of NbN Superconducting Nanowire Single-Photon Detectors with Enhanced Infrared Detection Efficiency
... the wire. Important additional support for this empirical model can be found by comparing the predictions of the model to the measured polarization-dependent absorption and detection efficiency of a set of ...
10
Contribution of lymphatic absorption to loss of ultrafiltration and solute clearances in continuous ambulatory peritoneal dialysis
... peritoneal cavity lymphatic absorption to ultrafiltration kinetics and solute clearances in continuous ambulatory peritoneal dialysis was evaluated in patients with normal (group 1) and high (group 2) ...
7