Results 81 to 90 of about 13,087 (290)

Numerical Studies of Optical Bistability of Absorptive Type

Communications, 2011
Theoretical analysis is presented to search for the purely absorptive optical bistability in a Fabry-Perot cavity filled with a saturable absorber. A simple model of singlet absorption is used on numerically solving the relationships between the input ...
Eliska Jurisova, Jarmila Mullerova
doaj   +1 more source

Solution of a statistical mechanics model for pulse formation in lasers

, 2003
We present a rigorous statistical-mechanics theory of nonlinear many mode laser systems. An important example is the passively mode-locked laser that promotes pulse operation when a saturable absorber is placed in the cavity.
A. E. Siegman, A. Gordon, Ariel Gordon, Baruch Fischer, H. Haken, H. Risken, J. Zinn-Justin, L. D. Landau, Omri Gat   +8 more
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Passively Mode-Locked Ytterbium-Doped Fiber Laser Based on SnS2 as Saturable Absorber

IEEE Photonics Journal, 2017
In this letter, tin disulfide (SnS2) nanosheets were employed as saturable absorber for obtaining passively mode-locked Yb-doped fiber laser. A SnS2-PVA film was fabricated by incorporating the SnS2 nanosheets with the polyvinyl alcohol (PVA), Based on ...
Jian Li, Yuefeng Zhao, Qingyun Chen, Kangdi Niu, Ruyi Sun, Huanian Zhang   +5 more
doaj   +1 more source

On Two Models of the Light Pulse Delay in a Saturable Absorber

, 2011
A comparative analysis of two approaches to description of the light modulation pulse delay in a saturable absorber is presented. According to the simplest model, the delay of the optical pulse is a result of distortion of its shape due to absorption ...
A. C. Selden, A. C. Selden, A. C. Selden, A. C. Selden, A. Kasapi, B. Macke, E. B. Aleksandrov, G. G. Kozlov, H. Su, H. W. Mocker, H. Wang, L. V. Hau, L. W. Hillman, M. Hercher, M. S. Lepeshkin, M. S. Lepeshkin, M. S. Malcuit, P. C. Ku, P. W. Milonni, P. Wu, R. Boyd, R. N. Shakhmuratov, R. W. Boyd, S. E. Schwarz, S. Stepanov, V. S. Zapasskii, V. S. Zapasskiĭ, V. S. Zapasskiĭ, V. S. Zapasskiĭ, W. Happer   +29 more
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

Influence of Absorption cross section of saturable absorber on Passive Q-switching laser pulse characteristics

مجلة علوم ذي قار, 2019
The absorption cross section of saturable absorber influence on passive Q-switching laser pulse behavior has been studied by numerical solution of rate equations mathematical model.
Abdul-Kareem M. Salih
doaj  

Passively Q-Switched pulse erbium doped fiber laser using Antimony (III) Telluride (Sb2Te3) thin film as saturable absorber [PDF]

, 2018
This paper demonstrates on an antimony telluride (Sb2Te3) thin film sandwiched between two fiber ferrule as saturable absorber for Qswitched pulsed Erbium doped fiber (EDF) laser.
Abdul Hadi, Fatin Shaqira, Ahmad, Fauzan, Awang, Noor Azura, Azmi, A N, LATIF, Amirah A., Yuzaile, Yushazlina R., Zakaria, Zahariah, Zalkepali, Noor U.H.H.   +7 more
core  

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source