Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Hoghooghi, Nazanin"'
Autor:
Chang, Peter, Ishrak, Ragib, Hoghooghi, Nazanin, Egbert, Scott, Rieker, Gregory B., Diddams, Scott A., Reddy, Rohith
We introduce a new parallelized approach to photothermal microscopy that utilizes mid-infrared dual-comb lasers, enabling simultaneous measurements at hundreds of wavelengths. This technology allows for high-speed, label-free chemical identification
Externí odkaz:
http://arxiv.org/abs/2409.15685
Autor:
Chang, Peter, Ishrak, Ragib, Hoghooghi, Nazanin, Egbert, Scott, Lesko, Daniel, Swartz, Stephanie, Biegert, Jens, Rieker, Gregory B., Reddy, Rohith, Diddams, Scott A.
Mid-infrared microscopy is an important tool for biological analyses, allowing a direct probe of molecular bonds in their low energy landscape. In addition to the label-free extraction of spectroscopic information, the application of broadband source
Externí odkaz:
http://arxiv.org/abs/2407.01973
Autor:
Liu, Yifan, Jin, Naijun, Lee, Dahyeon, McLemore, Charles, Nakamura, Takuma, Kelleher, Megan, Cheng, Haotian, Schima, Susan, Hoghooghi, Nazanin, Diddams, Scott, Rakich, Peter, Quinlan, Franklyn
We demonstrate a vacuum-gap ultrastable optical reference cavity that does not require a vacuum enclosure. Our simple method of optical contact bonding in a vacuum environment allows for cavity operation in air while maintaining vacuum between the ca
Externí odkaz:
http://arxiv.org/abs/2406.13159
Autor:
Tsao, Eugene J., Lind, Alexander J., Fredrick, Connor, Cole, Ryan K., Chang, Peter, Chang, Kristina F., Lee, Dahyeon, Heyrich, Matthew, Hoghooghi, Nazanin, Quinlan, Franklyn, Diddams, Scott A.
The detection of light of thermal origin is the principal means by which humanity has learned about our world and the cosmos. In optical astronomy, in particular, direct detection of thermal photons and the resolution of their spectra have enabled di
Externí odkaz:
http://arxiv.org/abs/2405.14842
Autor:
Yun, David, Egbert, Scott C., Malarich, Nathan A., Cole, Ryan K., France, Jacob J., Liu, Jiwen, Rice, Kristin M., Hagenmaier, Mark A., Donbar, Jeffrey M., Hoghooghi, Nazanin, Coburn, Sean C., Rieker, Gregory B.
Accurate diagnostics of the combustor region of ramjet engines can improve engine design and create benchmarks for computational fluid dynamics models. Previous works demonstrate that dual frequency comb spectroscopy can provide low uncertainty diagn
Externí odkaz:
http://arxiv.org/abs/2403.01380
Autor:
Hoghooghi, Nazanin, Chang, Peter, Burch, Scott Egbert Matt, Shaik, Rizwan, Lynch, Patrick, Diddams, Scott, Rieker, Gregory B.
Molecular diagnostics are a primary tool of modern chemistry, enabling researchers to map chemical reaction pathways and rates to better design and control chemical systems. Many chemical reactions are complex and fast, and existing diagnostic approa
Externí odkaz:
http://arxiv.org/abs/2307.07029
Autor:
Yun, David, Malarich, Nathan A., Cole, Ryan K., Egbert, Scott C., France, Jacob J., Liu, Jiwen, Rice, Kristin M., Hagenmaier, Mark A., Donbar, Jeffrey M., Hoghooghi, Nazanin, Coburn, Sean C., Rieker, Gregory B.
Supersonic engine development requires accurate and detailed measurements of fluidic and thermodynamic parameters to optimize engine designs and benchmark computational fluid dynamic (CFD) simulations. Here, we demonstrate that dual frequency comb sp
Externí odkaz:
http://arxiv.org/abs/2205.04891
Autor:
Yun, David, Cole, Ryan K., Malarich, Nathan A., Coburn, Sean C., Hoghooghi, Nazanin, Liu, Jiwen, France, Jacob J., Hagenmaier, Mark A., Rice, Kristin M., Donbar, Jeffrey M., Rieker, Gregory B.
Publikováno v:
Optica 9(9), 1050-1059 (2022)
Providing an accurate, representative sample of mass flux across large open areas for atmospheric studies or the extreme conditions of a hypersonic engine is challenging for traditional intrusive or point-based sensors. Here, we demonstrate that lase
Externí odkaz:
http://arxiv.org/abs/2204.01883
Autor:
Hoghooghi, Nazanin, Xing, Sida, Chang, Peter, Lesko, Daniel, Lind, Alexander, Rieker, Greg, Diddams, Scott
Mid-infrared (MIR) spectrometers are invaluable tools for molecular fingerprinting and hyper-spectral imaging. Among the available spectroscopic approaches, GHz MIR dual-comb absorption spectrometers have the potential to simultaneously combine the h
Externí odkaz:
http://arxiv.org/abs/2201.07134
Autor:
Xing, Sida, Lesko, Daniel, Umeki, Takeshi, Lind, Alexander, Hoghooghi, Nazanin, wu, Tsung-han, Diddams, Scott
Publikováno v:
APL Photonics 6, 086110 (2021)
Single-cycle pulses with deterministic carrier-envelope phase enable the study and control of light-matter interactions at the sub-cycle timescale, as well as the efficient generation of low-noise multi-octave frequency combs. However, current single
Externí odkaz:
http://arxiv.org/abs/2104.14649