Results 51 to 60 of about 5,024,477 (296)

Dual-pump Kerr Micro-cavity Optical Frequency Comb with varying FSR spacing. [PDF]

Sci Rep, 2016
In this paper, we demonstrate a novel dual-pump approach to generate robust optical frequency comb with varying free spectral range (FSR) spacing in a CMOS-compatible high-Q micro-ring resonator (MRR).
Wang W, Chu ST, Little BE, Pasquazi A, Wang Y, Wang L, Zhang W, Wang L, Hu X, Wang G, Hu H, Su Y, Li F, Liu Y, Zhao W.   +14 more
europepmc   +2 more sources

Control of Frequency Combs with Passive Resonators

Sensors, 2023
Tailored optical frequency combs are generated by nesting passive etalons within mode-locked oscillators. In this work, the oscillator generates a comb of 6.8 GHz with 106 MHz side-bands.
James Hendrie, Ning Hsu, Jean-Claude Diels   +2 more
doaj   +1 more source

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

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

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

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

Microfluidic Engineering of Microgels: A Review of Emerging Technologies, Materials, Fabrication Strategies, and Applications

Advanced Healthcare Materials, EarlyView.
Recent advances in microfluidic technologies for microgel fabrication are critically reviewed, highlighting the capabilities and limitations of major microfluidic platforms and discussing how platform design, material selection, and crosslinking strategies influence microgel architecture and functionality. Current challenges and future opportunities in
Afshin Abrishamkar, Laura Neely, Cynthia Pham, Nada Ibrahim, Alexis Larios‐Cervantes, Ben A. Kertesz, Todd Hoare   +6 more
wiley   +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