Results 61 to 70 of about 32,897 (303)

Ultrafast Laser-Based Spectroscopy and Sensing: Applications in LIBS, CARS, and THz Spectroscopy

Sensors, 2010
Ultrafast pulsed lasers find application in a range of spectroscopy and sensing techniques including laser induced breakdown spectroscopy (LIBS), coherent Raman spectroscopy, and terahertz (THz) spectroscopy.
Megan R. Leahy-Hoppa, Joseph Miragliotta, Robert Osiander, Jennifer Burnett, Yamac Dikmelik, Caroline McEnnis, James B. Spicer   +6 more
doaj   +1 more source

Ultrafast 2D spectroscopy with frequency combs: Towards cavity-enhanced multidimentional spectroscopy in molecular beams [PDF]

, 2019
Made available in DSpace on 2019-07-15T22:16:33Z (GMT). No. of bitstreams: 2 3816.pdf: 13365 bytes, checksum: 87e8e66d1faa0e5a2cf192e301d8c2bc (MD5) license.txt: 4802 bytes, checksum: 58353f9dd6876860dd5221f3d7872a95 (MD5) Previous issue date: 2019-06 ...
Nyaupane, Parashu R, Nyaupane, Parashu R.   +1 more
core   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Power Scaling of a Narrowband-Seeded, Non-Resonant Optical Parametric Oscillator Based on Periodically Poled LiNbO₃

Photonics
A periodically poled LiNbO3 (PPLN) non-resonant optical parametric oscillator injectionseeded by narrowband sub-50-mW CW radiation at the signal wavelength produces a >3 W average idler power at 2376 nm for a 20 kHz repetition rate, with a ~2 nm spectral
Tugba Temel, Subhasis Das, Gerhard Spindler, André Schirrmacher, Robert T. Murray, Marcin Piotrowski, Li Wang, Weidong Chen, Valentin Petrov   +8 more
doaj   +1 more source

Widely tunable cavity-enhanced ultrafast spectroscopy [PDF]

EPJ Web of Conferences, 2019
Generation of widely tunable frequency combs in the UV, visible, and infrared is discussed for use in cavity-enhanced transient absorption spectroscopy on gas-phase clusters. Progress towards cavity-enhanced two-dimensional spectroscopy is also presented.
Silfies Myles C., Chen Yuning, Timmers Henry, Kowligy Abijith S., Lind Alex, Diddams Scott A., Allison Thomas K.   +6 more
doaj   +1 more source

Femtosecond Laser Structuring for Flexible Surface-Enhanced Raman Spectroscopy Substrates

IEEE Photonics Journal, 2021
Surface-enhanced Raman spectroscopy (SERS) is an optical technique for molecule identification. However, fabrication of flexible and structured SERS substrates for performance improvement in a facile and cost-effective manner is challenging. In this work,
Li-Nan Fang, Ji-Chao Li, Jia-Rui Zhang, Dong-Dong Han   +3 more
doaj   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

Advanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He, Wenbo Wang, Simon Schweidler, Yanjiao Ma, Ben Breitung, Torsten Brezesinski   +5 more
wiley   +1 more source

Vibrational dynamics resolved with sub-10-fs deep-ultraviolet pulses

EPJ Web of Conferences, 2013
Time-resolved ultrafast spectroscopy with sub-10-fs deep ultraviolet pulses was demonstrated for the first time. For the spectroscopy, the sub-10-fs pulses with smooth temporal and spectral profiles, which were suitable for spectroscopy, were prepared ...
Kobayashi T., Kida Y.
doaj   +1 more source

MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI

Advanced Functional Materials, EarlyView.
Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko, Seongchan Kim, Jun‐Hyeok Han, Sanghee Lee, Minji Ahn, Hong En Fu, Young Jun Jang, Yoo Sang Jeon, Weiguo Li, Young Keun Kim, Dong‐Hyun Kim   +10 more
wiley   +1 more source

Local photo-mechanical stiffness revealed in gold nanoparticles supracrystals by ultrafast small-angle electron diffraction

Structural Dynamics, 2019
We demonstrate that highly ordered two-dimensional crystals of ligand-capped gold nanoparticles display a local photo-mechanical stiffness as high as that of solids such as graphite.
Giulia Fulvia Mancini, Francesco Pennacchio, Tatiana Latychevskaia, Javier Reguera, Francesco Stellacci, Fabrizio Carbone   +5 more
doaj   +1 more source