Results 91 to 100 of about 5,024,459 (297)

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

Frequency Comb-Based WDM Transmission Systems Enabling Joint Signal Processing

Applied Sciences, 2018
We review the use of optical frequency combs in wavelength-division multiplexed (WDM) fiber optic communication systems. In particular, we focus on the unique possibilities that are opened up by the stability of the comb-line spacing and the phase ...
Lars Lundberg, Magnus Karlsson, Abel Lorences-Riesgo, Mikael Mazur, Victor Torres-Company, Jochen Schröder, Peter A. Andrekson   +6 more
doaj   +1 more source

Femtosecond optical frequency comb-based tandem interferometer [PDF]

, 2009
The principle of a unique interferometer, called a femtosecond optical frequency comb-based (FOFC-based) tandem interferometer, is proposed and demonstrated for the first time.
Takamasu, K., Hirokazu Matsumoto, Kiyoshi Takamasu, Wei, D., Dong Wei, Matsumoto, H., Takahashi, S., Satoru Takahashi   +7 more
core   +1 more source

Navigating AI with pedagogical purpose: Toward an anatomy‐centered framework for AI‐enhanced learning

Anatomical Sciences Education, EarlyView.
Abstract Artificial Intelligence (AI) has emerged as a transformative force in medical education, enabling customized, feedback‐rich, and immersive learning experiences. Anatomy education, as a discipline that is simultaneously visual, spatial, and clinically foundational, occupies a distinctive position within this technological landscape.
Rachel Jayasekhar, Gok Kandasamy
wiley   +1 more source

Endless frequency shifting of optical frequency comb lines

Optics Express, 2013
The functional principle of a novel technique for frequency shifting lines of an optical frequency comb is demonstrated. The underlying principle is to shift the carrier frequency by changing the carrier phase within the time span between subsequent pulses of a mode-locked laser used as comb generator.
Erik, Benkler, Felix, Rohde, Harald R, Telle   +2 more
openaire   +2 more sources

Transfersomes with core and surface‐loaded NF‐κB p65 siRNA for enhanced transdermal transfection and effective treatment of psoriasis

BMEMat, EarlyView.
TCPL, a transfersome with Tween 80 and PEI, enables efficient transdermal siNF‐κB delivery, resolving PEI's toxicity issue. It promotes lysosomal escape and effective transfection, silences NF‐κB, modulates immunity, and inhibits angiogenesis, alleviating psoriasis. With good biocompatibility, TCPL holds strong clinical translation potential. Schematic
Hui Xing, Yuhui Yang, Ziyi Zhao, Kai Lv, Yiran Shao, Zhi Zhang, Dong Ma   +6 more
wiley   +1 more source

Entanglement generation with integrated optical frequency comb sources

, 2017
We show that integrated optical frequency comb sources, based on on-chip microring resonators, can be used as versatile sources of two- and multi-photon entangled states when operated well below their optical parametric oscillation threshold.
Brent E. Little, Sai T. Chu, Benjamin Wetzel, Piotr Roztocki, David J. Moss, Caspani, Lucia, Bromberg, Yaron, Little, Brent E., Roberto Morandotti, Reimer, Christian, Christian Reimer, Wetzel, Benjamin, Morandotti, Roberto, Yaron Bromberg, Chu, Sai T., Michael Kues, Lucia Caspani, Roztocki, Piotr, Moss, David J., Kues, Michael, Moss, David   +20 more
core   +1 more source

Homodyne OFDM using simple optical carrier recovery [PDF]

, 2014
We demonstrate a novel optical injection locking approach to carrier recovery in RF-pilot aided OFDM. Any need for optical pre-filtering is eliminated and only very narrow guard bands are required.
Wu, D.S., David J. Richardson, Slavík, R., Richardson, D.J., Zhixin Liu, Liu, Z., David S. Wu, Radan Slavík   +7 more
core   +1 more source

Beyond antimicrobials: Ecological nano‐strategies for rebalancing dysbiotic oral microbial homeostasis

BMEMat, EarlyView.
Oral microbial homeostasis, a dynamic host‐microbe balance, is vital in infectious diseases. Conventional antibiotics often disrupt this homeostasis, spurring interest in nanomaterials for oral microbial homeostasis rebalancing. This review outlines nanomaterial strategies across three ecological levels (population/community, ecosystem, and cross ...
Chen Hu, Aohan Luan, Yujun Yang, Linlin Wang, Huilin Wang, Ning Wang, Guixin He, Yajie Yang, Rabiya Noor, Jawad Hussain, Longquan Shao   +10 more
wiley   +1 more source

Selective amplification of frequency comb modes via optical injection locking of a semiconductor laser: influence of adjacent unlocked comb modes

Optical injection locking can be used to isolate and amplify individual comb modes from an optical frequency comb (OFC). However, it has been observed that for narrow spaced OFCs (e.g.
Wu, D.S., Slavík, R., Richardson, D.J.
core   +1 more source