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Ultralow Noise Optical Frequency Combs [PDF]

IEEE Journal of Selected Topics in Quantum Electronics, 2018
The invention of optical frequency combs (OFCs) based on femtosecond (fs) mode-locked lasers has merged laser based spectroscopy with fs-laser technology. OFCs have triggered quantum leaps of advancement in photonics, physics, astronomy, and engineering, while also lending themselves to applications in medical and environmental fields.
Mamoru Endo, Tyko D. Shoji, Thomas R. Schibli   +2 more
openaire   +1 more source

Soft Artificial Ciliary Brush with Integrated Haptic Feedback for Efficient Airway Mucus Cleaning

Advanced Intelligent Systems, EarlyView.
A fundamental mucus cleaning mechanism is reported, which utilizes both artificial cilia mechanical sweeping and suction‐based mucus cleaning. A novel haptic feedback interface for the artificial cilia provides touch feedback on tissue contact, enhancing operator control and safety.
Zhongming Lyu, Yusheng Wang, Ruijian Ge, Darren Wang, Matthew Bacchetta, Caitlin T. Demarest, Fabien Maldonado, Xiaoguang Dong   +7 more
wiley   +1 more source

An ultra-stable high-power optical frequency comb

APL Photonics
Optical frequency combs are typically generated in the near-infrared wavelength range, where many mode-locked lasers operate. Nonlinear frequency conversion can then be used to extend optical frequency metrology to other spectral regions, such as the ...
Fabian Schmid, Jorge Moreno, Johannes Weitenberg, Peter Russbüldt, Theodor W. Hänsch, Thomas Udem, Akira Ozawa   +6 more
doaj   +1 more source

Doppler cooling with coherent trains of laser pulses and tunable "velocity comb"

, 2011
We explore the possibility of decelerating and Doppler cooling of an ensemble of two-level atoms by a coherent train of short, non-overlapping laser pulses.
Andrei Derevianko, Ekaterina Ilinova, H. J. Metcalf, Mahmoud Ahmad, P. R. Berman, V. Minogin   +5 more
core   +1 more source

A Fast Method for Selecting Bio Sourced Materials of Interest in a Candle Formulation

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT As consumer demand shifts towards more sustainable and nontoxic alternatives, the candle industry is exploring unconventional bio‐based and recycled materials as substitutes for paraffin. Four raw materials, that is rice bran wax (RBW), sugarcane wax (SCW), hydrogenated rapeseed oil (HRO), and waste cooking oil (WCO) were assessed based on ...
Salma Daoufa, Abdellah Arhaliass, Jack Legrand, Delphine Drouin, Raphaëlle Savoire   +4 more
wiley   +1 more source

Quantum-Noise-Limited Optical Frequency Comb Spectroscopy

Physical Review Letters, 2011
We achieve a quantum-noise-limited absorption sensitivity of 1.7/times10$^{-12}$ cm$^{-1}$ per spectral element at 400 s of acquisition time with cavity-enhanced frequency comb spectroscopy, the highest demonstrated for a comb-based technique. The system comprises a frequency comb locked to a high-finesse cavity and a fast-scanning Fourier transform ...
Foltynowicz, Aleksandra, Ban, Ticijana, Masłowski, Piotr, Adler, Florian, Ye, Jun   +4 more
openaire   +5 more sources

Technobiological Pathways for High‐CO₂ Capture Using Micro‐/Macroalgae: Genetic Engineering, Process Automation, and Value‐Added Bioproducts

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley   +1 more source

Optical frequency synthesis and measurement using fibre-based femtosecond lasers

, 2008
We report the synthesis and measurement of an ultra-precise and extremely stable optical frequency in the telecommunications window around 1543 nm. Using a fibre-based femtosecond frequency comb we have phase-stabilised a fibre laser at 194 THz to an ...
Grosche, Gesine, Lipphardt, Burghard, Schnatz, Harald   +2 more
core   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

The Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li, Mike Schindler, Martha Paskin, Venkata A. Surapaneni, Elliott Scott, Sabine Hauert, Nicholas Payne, David E. Cade, Jeremy A. Goldbogen, Frederik H. Mollen, Daniel Baum, Sean Hanna, Mason N. Dean   +12 more
wiley   +1 more source

Microresonator-based high-resolution gas spectroscopy

, 2017
In recent years, microresonator-based optical frequency combs have created up opportunities for developing a spectroscopy laboratory on a chip due to its broadband emission and high comb power.
Gaeta, Alexander L., Griffith, Austin G., Lipson, Michal, Okawachi, Yoshitomo, Yu, Mengjie   +4 more
core   +1 more source