Results 51 to 60 of about 5,012,631 (298)

Astronomical optical frequency comb generation and test in a fiber-fed MUSE spectrograph [PDF]

, 2014
We here report on recent progress on astronomical optical frequency comb generation at innoFSPEC-Potsdam and present preliminary test results using the fiber-fed Multi Unit Spectroscopic Explorer (MUSE) spectrograph.
M. M. Roth, Fremberg, T., H. Sayinc, Bodenmüller, D., Hernandez, E., Neumann, J., M. Wysmolek, Roth, M. M., J. M. Chavez Boggio, Haynes, R., M. Zajnulina, J. Neumann, Zajnulina, M., Sayinc, H., Chavez Boggio, J. M., A. Kelz, M. Rutowska, Kelz, A., C. Sandin, Moralejo, B., D. Bodenmüller, Sandin, C., B. Moralejo, R. Haynes, T. Fremberg, Wysmolek, M., Rutowska, M., E. Hernandez   +27 more
core   +1 more source

Towards generation of optical frequency comb in the short-wavelength visible region using periodically poled lithium niobate waveguides

Results in Optics, 2021
We demonstrate the spectral broadening of an octave-spanning erbium-based frequency comb in two types of periodically poled lithium niobate (PPLN) waveguides.
Yuma Goji, Chaoyun Chen, Kohei Ikeda, Kazumichi Yoshii, Feng-Lei Hong   +4 more
doaj   +1 more source

Optimization of acousto-optic optical frequency combs

Optics Express, 2019
Acousto-optic optical frequency combs can easily produce several hundreds of mutually coherent lines from a single laser, by successive frequency shifts in a loop containing an acousto-optic frequency shifter. They combine many advantages for multi-heterodyne interferometry and dual-comb spectroscopy.
Nithyanandan Kanagaraj, Leo Djevarhidjian, Vicente Duran, Come Schnebelin, Hugues Guillet de Chatellus   +4 more
openaire   +3 more sources

Stable 100 GHz Pulses Generated by injection locking of multiple lasers to an optical frequency comb

, 2014
Optical frequency combs (OFCs) can generate a wide bandwidth of regularly spaced modes with high frequency stability. Besides frequency and time metrology, OFCs can also have applications in arbitrary waveform generation and telecommunications by ...
Wu, D.S., Slavík, R., Richardson, D.J.
core   +1 more source

ALDH Inhibition‐Primed Photocatalysis Disrupts Cancer Stemness Plasticity

Angewandte Chemie, EarlyView.
DE‐Et converts ALDH‐mediated redox buffering into a photoredox vulnerability by coupling ALDH inhibition with red‐light‐driven catalytic NADH oxidation. This enzyme‐coupled photoredox strategy sustains mitochondrial NADH/NAD+ imbalance, induces pyroptotic tumor cell death, suppresses tumor growth in vivo, and promotes systemic antitumor immunity ...
Yujin Kim, Shankun Yao, Ji Hyeon Kim, Rongrong Huang, Hyeonji Rha, Shumeng Li, Kippeum Lee, Yunjie Xu, Xiaogang Liu, Yuncong Chen, Jong Seung Kim   +10 more
wiley   +2 more sources

Spectral Peaked Optical Frequency Comb for Highly Sensitive Spectroscopy

Advanced Photonics Research
Optical frequency combs represent a breakthrough in the field of metrology. Because an optical frequency comb has a large number of comb modes, the optical energy is dispersed over the comb modes, and the optical energy per comb mode is very small.
Norihiko Nishizawa, Shotaro Kitajima, Hideki Tomita, Hisashi Abe   +3 more
doaj   +1 more source

High-Sensitivity and High-Precision RI Sensing Using THz-Comb-Based Frequency Multiplication and Dual-Comb Active-Dummy Temperature Compensation [PDF]

EPJ Web of Conferences
This paper presents a novel optical-comb-based refractive index sensor that simultaneously achieves high-sensitivity and high-precision by combining THz-comb-based frequency multiplication with active-dummy temperature compensation in a dual-comb ...
Higaki Masayuki, Taue Shuji, Tokizane Yu, Hase Eiji, Minamikawa Takeo, Yasui Takeshi   +5 more
doaj   +1 more source

Microresonator frequency comb optical clock

Optica, 2014
Optical-frequency combs enable measurement precision at the 20th digit, and accuracy entirely commensurate with their reference oscillator. A new direction in experiments is the creation of ultracompact frequency combs by way of nonlinear parametric optics in microresonators.
Papp, Scott B., Beha, Katja, Del'Haye, Pascal, Quinlan, Franklyn, Lee, Hansuek, Vahala, Kerry J., Diddams, Scott A.   +6 more
openaire   +4 more sources

Experimental analysis of four-wave mixing in a semiconductor optical amplifier using frequency resolved optical gating [PDF]

, 2007
Four-wave mixing was performed in a multi-quantum well semiconductor optical amplifier in order to demultiplex 2 ps pulses from 80 GHz to 10 GHz. The demultiplexed pulses were measured using frequency resolved optical gating.
Barry, Liam P., B. F. Kennedya, K. Bondarczukb, K. Bondarczuk, L. P. Barryb, Bondarczuk, Krzysztof, Kennedy, Brendan F., L.P. Barry, B.F. Kennedy   +8 more
core   +2 more sources

Integrated dual optical frequency comb source [PDF]

, 2020
A monolithically integrated dual-channel optical frequency comb source is demonstrated in this paper. Three lasers are integrated on a single chip using a regrowth-free fabrication process in a master-slave-slave configuration.
Ruth, Albert A., Anandarajah, Prince M., Dernaika, Mohamad, Alexander, Justin K., Caro, Ludovic, Duggan, Shane P., Peters, Frank H., Yang, Hua, Martin, Eamonn P., Chandran, Satheesh   +9 more
core   +1 more source