An array of fused silica waveguiding channels with randomly distributed transverse sizes in a disordered microstructure fiber is shown to allow a highly efficient broadly tunable frequency conversion of low-energy ultrashort laser pulses. Dispersion can be switched in such waveguide arrays by coupling the pump field into waveguiding wires with different diameters. Microstructure-fiber-integrated random arrays of waveguides with diameters ranging from 0.6 up to 1.5 mum can frequency-convert unamplified subnanojoule Ti: sapphire laser pulses with an initial duration of 30 fs to any wavelength within a broad spectral range from 400 up to 700 nm, suggesting interesting fiber-optic strategies for multiplex frequency conversion and sensing.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/opex.12.006129 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Towards a unified fold-cusp model for bond polarity scaling: electron rearrangements in the pyrolytic isomerization of cubane to cyclooctatetraene.
J Mol Model
January 2025
Departamento de Investigación y Desarrollo, ConsultoresAcademicos SpA, Moneda 1137, 8340457, Santiago, Chile.
Context: This study meticulously examines the criteria for assigning electron rearrangements along the intrinsic reaction coordinate (IRC) leading to bond formation and breaking processes during the pyrolytic isomerization of cubane (CUB) to 1,3,5,7-cyclooctatetraene (COT) from both thermochemical and bonding perspectives. Notably, no cusp-type function was detected in the initial thermal conversion step of CUB to bicyclo[4.2.
View Article and Find Full Text PDFRe-thinking the link between exposure to mercury and blood pressure.
Arch Toxicol
January 2025
Chemical and Environmental Toxicology Program, Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, ON, K1N 6N5, Canada.
Hypertension or high blood pressure (BP) is a prevalent and manageable chronic condition which is a significant contributor to the total global disease burden. Environmental chemicals, including mercury (Hg), may contribute to hypertension onset and development. Hg is a global health concern, listed by the World Health Organization (WHO) as a top ten chemical of public health concern.
View Article and Find Full Text PDFEnhanced second harmonic generation in a 2 polymorph of CHNOZn for UV nonlinear optical applications.
Dalton Trans
January 2025
State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
The quest for novel nonlinear optical (NLO) polymorphs is pivotal for advancing laser technology and frequency conversion applications. We present a detailed study on the synthesis and properties of the 2 polymorph of CHNOZn, which exhibits an enhanced second harmonic generation (SHG) effect, 0.3 times that of KDP, nearly 8-fold higher than the 422 phase.
View Article and Find Full Text PDFShort INDELs and SNPs as markers of evolutionary processes in hybrid zones.
J Evol Biol
January 2025
ISTA (Institute of Science and Technology Austria), Am Campus 1, 3400 Klosterneuburg, Austria.
Polymorphic short insertions and deletions (INDELs ≤ 50 bp) are abundant, although less common than single nucleotide polymorphisms (SNPs). Evidence from model organisms shows INDELs to be more strongly influenced by purifying selection than SNPs. Partly for this reason, INDELs are rarely used as markers for demographic processes or to detect divergent selection.
View Article and Find Full Text PDFEffects of stocking density on growth performance, digestive enzyme activity, biochemical composition, and economic efficiency of a new strain of reared in cage culture system at Sindh Pakistan.
Food Sci Nutr
January 2025
Environmental and Life Sciences Programme, Faculty of Science Universiti Brunei Darussalam Jalan Tungku Link Gadong Brunei Darussalam.
The latest strain of is an altered ecological adaptation for sustainable aquaculture and is necessary to sustain stocking density and reduce physiological stress of the new strain. The present study aimed to determine the optimum stocking density, biological performance, and economic efficiency of the Nile tilapia. The 14,000 healthy seeds and uniform weight (40 ± 2.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!