Results 41 to 50 of about 3,455,218 (297)

Investigations on the Nonlinear Optical Properties of 0D, 1D, and 2D Boron Nitride Nanomaterials in the Visible Spectral Region

Nanomaterials, 2023
In recent years, boron nitride nanomaterials have attracted increasing attention due to their unique properties such as high temperature stability and high thermal conductivity.
Stefanie Dengler, Bernd Eberle
doaj   +1 more source

Hybrid materials for optical limiting applications

, 2006
Optical limiting materials are developed for applications in protection of optical sensors against laser aggressions. We have studied functionalised macrocycles (thiacalixarenes) and alkynylplatinum(H) derivatives for optical limiting applications. Glass
Zieba, Roman, Lindgren, Mikael, Malmstrom, Eva, Desroches, Cedric, Malmström, Eva,, Chaput, Frederic, Eliasson, Bertil,, Parola, Stephane, Eliasson, Bertil, Lopes, Cesar   +9 more
core   +1 more source

Optical limiting behavior of tungstate fluorophosphate glasses

, 2003
Nonlinear absorption measurements were performed on fluorophosphate glasses with high concentration of tungsten oxide. Large two-photon absorption coefficients, α2, were determined at 660 nm using nanosecond laser pulses.
De Araújo, Cid B., Messaddeq, Younes, Ribeiro, Sidney J.L., Poulain, Marcel, Poirier, Gaël, Marcel Poulain, Gael Poirier, Cid B. de Araujo, Younes Messaddeq, Sidney J. L. Ribeiro   +9 more
core   +1 more source

How to assess good candidate molecules for self-activated optical power limiting [PDF]

, 2018
Reverse saturable absorbers have shown great potential to attenuate laser radiation. Good candidate molecules and various particles have successfully been incorporated into different glass matrices, enabling the creation of self-activated filters against
Eirik Glimsdal, Lindgren, Mikael, Mikael Lindgren, Cesar Lopes, Glimsdal, Eirik, Lunden, Hampus, Hampus Lundén, Lopes, Cesar, Lundén, Hampus,, Glimsdal, Eirik,, Lindgren, Mikael,, Lopes, Cesar,   +11 more
core   +1 more source

Spectral properties of limiting solitons in optical fibers

, 2014
It seems to be self-evident that stable optical pulses cannot be considerably shorter than a single oscillation of the carrier field. From the mathematical point of view the solitary solutions of pulse propagation equations should loose stability or ...
Bandelow, U., Akhmediev, N., Amiranashvili, S, Akhmediev, Nail, Bandelow, Uwe, Amiranashvili, Shalva   +5 more
core   +1 more source

Investigation of an optical limiting mechanism in multiwalled carbon nanotubes

, 2012
[[abstract]]We report our investigation of the mechanism that is responsible for the optical limiting behavior in multiwalled carbon nanotubes. We conducted energy-dependent transmission measurements, picosecond time-resolved pump-probe experiment, and ...
Xuan Sun ;Yuenan Xiong ;Ping Chen ;Jianyi Lin ;Wei Ji ;Jin Hong Lim;Yang, S.S.;Hagan, D.J.;van Stryland, E.W.
core   +1 more source

Nonlinear Dynamics of Tetraphenylporphyrin and Dithiaporphyrin and Their Diacids via Pulse Trains with ps/ns Subpulse Widths

Photonics
The nonlinear optical absorption of tetraphenylporphyrin (H2TPP) and dithiaporphyrin (DSP) and their diacids (H4TPP2+ and H2DSP2+) via pulse trains was studied. The subpulse widths of pulse trains were set as 30 ps and 5 ns according to experimental work.
Quan Miao, Erping Sun, Yan Xu
doaj   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk, Sebastian Michaelis, Michaela Döring, Thomas Eichholz, Ursula Holzer, Martin Ebinger, Tim Flaadt, Rupert Handgretinger, Peter Lang, Jan Frederic Weller, Markus Mezger   +10 more
wiley   +1 more source

Studies on structural, optical nonlinearity and antibacterial activity of Piperazine (bis) p-toluenesulfonate single crystal for optical limiting and biological applications

Фізика і хімія твердого тіла, 2023
Piperazine (bis) p-toluenesulfonate (PPTSA), an organic single crystal was synthesized and grown at environmental temperature by slow evaporation process using methanol as the solvent.
K. Balakrishnan, S. Sakthy Priya, A. Lakshmanan, P. Surendran, Karthik Kannan, P. Geetha, G. Vinitha, P. Praveen Kumar, P. Rameshkumar   +8 more
doaj   +1 more source

Biphasic Clinical Course of Pediatric Cytomegalovirus‐Associated Immune Thrombocytopenia: Early Poor Treatment Response but Favorable Long‐Term Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cytomegalovirus (CMV) is a recognized trigger of immune thrombocytopenia (ITP); however, its incidence and impact on disease course in children remain controversial. Therefore, we aimed to characterize the clinical course of pediatric patients with CMV‐associated ITP.
Oded Gilad, Ohad Atia, Osama Tanous, Dafna Brik Simon, Michal Dvori, Miriam Cohen, Tracie A. Goldberg, Efraim Bilavsky, Joanne Yacobovich, Orna Steinberg‐Shemer   +9 more
wiley   +1 more source