Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Charles C. Harb"'
Autor:
X. Moya, Charles C Harb, P. Roghanchi, P. Hemp, L. Uecker, T. Rawson, J. Roberts, Ruwini D. Rajapaksha
Publikováno v:
Mine Ventilation ISBN: 9781003188476
Mine Ventilation
Mine Ventilation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1ab5dd65ef3e1c2254065d17bd36a49
https://doi.org/10.1201/9781003188476-25
https://doi.org/10.1201/9781003188476-25
Publikováno v:
Environmental sciencetechnology. 55(12)
Growing demand of Juul and other electronic cigarettes, despite critical knowledge gaps about their chemical composition, has led to concerns regarding their potential health effects. We introduce a novel analytical approach, runtime cavity ringdown
Autor:
Charles C Harb, Ruwini D. Rajapaksha
Publikováno v:
Optical Sensors and Sensing Congress.
Natural gas leaks are a serious concern not only because of methane emission but also an explosive threat. We report designing of a portable, miniaturized, laser-based methane tracker for rapid detection of natural gas leaks.
Publikováno v:
Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP).
To advance our understanding of ocean chemistry, new in situ sensors are needed. By coupling gas extraction techniques to laser-based sensors, we can measure key gases such as methane and carbon dioxide in ocean environments.
Autor:
Ping Koy Lam, Hans-A. Bachor, Katherine Wagner, Jean-Francois Morizur, Nicolas Treps, Jiri Janousek, Charles C. Harb
Publikováno v:
Nature Photonics. 3:399-402
Optical entanglement — a key requirement for many quantum communication protocols — is typically formed between two distinct beams, requiring repeated combination of complex resources, which becomes increasingly difficult as the number of entangl
Autor:
Charles C. Harb, Paul J. Dagdigian, Thomas G. Spence, Karl David Pavey, Toby K. Boyson, David S. Moore, Nicholas John Fitzgerald
Publikováno v:
Optics letters. 40(19)
Cavity-enhanced spectroscopy is a sensitive optical absorption technique but one where the practical applications have been limited to studying small wavelength ranges. This Letter shows that wideband operation can be achieved by combining techniques
Autor:
Charles C. Harb, Toby K. Boyson
Publikováno v:
CLEO: 2015.
We present new results from a variant of cavity enhanced spectroscopy that allows large spectral bandwidths to be analysed in real time, and demonstrate new methods to apply the technique to real-time monitoring of species with broad absorbances.
Autor:
V. Delaubert, Magnus T. L. Hsu, Hans-Albert Bachor, Ping Koy Lam, Nicolas Treps, Charles C. Harb, Claude Fabre
Publikováno v:
Journal of Modern Optics. 53:597-611
The application of quantum optics to spatial measurements with continuous-wave laser beams is discussed. In particular, we summarize the work on measuring small displacements and tilt. We present the required theoretical multi-mode model and discuss
Autor:
Charles C. Harb
Publikováno v:
Light, Energy and the Environment.
It is commonly known that we are made up of approximately 60% water, but if fact we are 100% MOLECULES! Sci-Fi shows invent simple instruments to diagnose humans in real-time. Is it science fiction or fact?
Autor:
Robert L. Byer, Benno Willke, Richard N. Zare, Thomas G. Spence, Charles C. Harb, Barbara A. Paldus
Publikováno v:
Review of Scientific Instruments. 71:347-353
A system is described that employs a diode-pumped Nd:YAG continuous-wave laser source servolocked to a three-mirror optical cavity and an analog detection circuit that extracts the ring-down rate from the exponentially decaying ring-down waveform. Th