Results 81 to 90 of about 42,660 (292)

Instability and dynamics of two nonlinearly coupled laser beams in a plasma [PDF]

, 2006
We investigate the nonlinear interaction between two laser beams in a plasma in the weakly nonlinear and relativistic regime. The evolution of the laser beams is governed by two nonlinear Schroedinger equations that are coupled with the slow plasma ...
Dieckmann, M. E., Eliasson, B., Kourakis, I., Marklund, M., Parviainen, M., Shukla, P. K., Stenflo, L.   +6 more
core   +3 more sources

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Transient stimulated Raman scattering spectroscopy and imaging

Light: Science & Applications
Stimulated Raman scattering (SRS) has been developed as an essential quantitative contrast for chemical imaging in recent years. However, while spectral lines near the natural linewidth limit can be routinely achieved by state-of-the-art spontaneous ...
Qiaozhi Yu, Zhengjian Yao, Jiaqi Zhou, Wenhao Yu, Chenjie Zhuang, Yafeng Qi, Hanqing Xiong   +6 more
doaj   +1 more source

Ultrafast-Laser-Induced Backward Stimulated Raman Scattering for Tracing Atmospheric Gases

EPJ Web of Conferences, 2013
By combining tunable broadband pulse generation with nonlinear spectral compression, we demonstrate a prototype scheme for highly selective coherent standoff sensing of air molecules and discuss its coupling to the recently demonstrated backward ...
Zheltiko A., Giniūnas L., Danielius A., Baltuška A., Pugžlys A., Ališauskas S., Pu Z., Kartashov D., Malevich P. N., Marangoni M., Cerullo G.   +10 more
doaj   +1 more source

Theory of selective excitation in Stimulated Raman Scattering

, 2003
A semiclassical model is used to investigate the possibility of selectively exciting one of two closely spaced, uncoupled Raman transitions. The duration of the intense pump pulse that creates the Raman coherence is shorter than the vibrational period of
B.J. Pearson, D. Oron, D. Oron, M.O. Scully, N. Dudovich, P. H. Bucksbaum, P. R. Berman, R.S. Judson, S. A. Malinovskaya, S. Shi, S. Shi, T.C. Weinacht, T.C. Weinacht   +12 more
core   +1 more source

Targeting Post‐Irradiation Thyroid Dysfunction: Electrospun Scaffolds As A Dual‐Action Approach for Antioxidant and Immune Modulation

Advanced Healthcare Materials, EarlyView.
Radiation‐induced hypothyroidism follows head and neck radiotherapy due to oxidative stress and inflammation. Electrospun polycaprolactone scaffolds containing adenosine have potential to modulate thyroid repair. Scaffolds enhance thyrocyte proliferation, antioxidant enzymes glutathione peroxidase and catalase, reduce senescence and apoptosis markers ...
Maria Heim, Ella‐Louise Handley, Daniel Grant, Lizi M. Hegarty, Elaine Emmerson, Anthony Callanan   +5 more
wiley   +1 more source

Fluorescent Nanosensor for Indole‐3‐Propionic Acid Detection in Gut Health Monitoring

Advanced Healthcare Materials, EarlyView.
This work introduces a fluorescent nanosensor system with two optical modalities for detection of indole‐3‐propionic acid (IPA) gut metabolite: (1) blue‐emitting cationic conjugated polyelectrolyte (CP3) and (2) near‐infrared (NIR)‐emitting CP3‐wrapped single‐walled carbon nanotube (SWNT).
Mervin Chun‐Yi Ang, Jonathan Wei Jie Lee, Sayyid Mohaideen, Gabriel Sánchez‐Velázquez, Song Wang, Yangyang Han, Liu Lin, Germaine Yong, Raju Cheerlavancha, Duc Thinh Khong, Jianhong Ching, Sharon Hong Yu Han, Jun Yu Yeo, Lian Xu, Gajendra Pratap Singh, Michael S. Strano   +15 more
wiley   +1 more source

INVERSE SCATTERING TRANSFORM ANALYSIS OF STOKES-ANTI-STOKES STIMULATED RAMAN SCATTERING

, 1995
Zakharov-Shabat--Ablowitz-Kaup-Newel-Segur representation for Stokes-anti-Stokes stimulated Raman scattering is proposed. Periodical waves, solitons and self-similarity solutions are derived. Transient and bright threshold solitons are discussed.Comment:
A. A. Zabolotskii, A. E. Kaplan, A. E. Kaplan, A. M. Basharov, A. P. Hickman, C. Claude, C. Claude, C. R. Menyuk, C. R. Menyuk, C. R. Menyuk, D. A. Cardimona, D. J. Kaup, D. J. Kaup, D. J. Kaup, D. Levi, D. Levi, F. Y. F. Chu, G. Hilfer, H. Steudel, I. R. Gabitov, J. C. Englund, J. C. Englund, J. Leon, J. Leon, J. N. Elgin, J. R. Ackerhalt, J. W. Haus, K. J. Drühl, L. Allen, L. D. Faddeev, M. D. Duncan, M. J. Ablowitz, M. Scalora, N. A. Kostov, N. Tan-no, N. Tan-no, P. C. MacPherson, P. R. Peterson, R. Courant, R. G. Wenzel, R. K. Dodd, S. P. Burtsev, S. P. Burtsev, S. P. Burtsev, S. V. Manakov, S. Ya. Kilin, T. M. Makhviladze, T. M. Makhviladze, V. E. Zakharov, V. S. Gerdjikov, V. S. Gerdjikov, V. S. Gerdjikov, V. Yu. Novokshenov, Y. R. Shen   +53 more
core   +1 more source

Optoelectrical Devices for Neural Interfacing: Engineering Integration, Stability, and Multimodal Sensing

Advanced Healthcare Materials, EarlyView.
Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou, Barbara Spagnolo, Antonio Balena, Massimo De Vittorio, Ferruccio Pisanello   +4 more
wiley   +1 more source

Raman solitons in transient SRS

, 2000
We report the observation of Raman solitons on numerical simulations of transient stimulated Raman scattering (TSRS) with small group velocity dispersion. The theory proceeds with the inverse scattering transform (IST) for initial-boundary value problems
Agrawall G P, Boiti M, F Pempinelli, J Leon, J-G Caputo, Levi D, M Boiti, Newell A C, Steudel H, Wenzel R G, Yariv A   +10 more
core   +1 more source