power scaling
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Author(s):  
Teng Zhang ◽  
Wanxin Zheng ◽  
Kai Feng ◽  
Dong Wang ◽  
Bin Xu ◽  
...  
Keyword(s):  

Photonics ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 565
Author(s):  
Soumya Sarang ◽  
Martin Richardson

Optical parametric oscillators (OPOs) and Raman lasers are two nonlinear-based laser technologies that extend the spectral range of conventional inversion lasers. Power and brightness scaling of lasers are significant for many applications in industry, medicine, and defense. Considerable advances have been made to enhance the power and brightness of inversion lasers. However, research around the power scaling of nonlinear lasers is lacking. This paper reviews the development and progress of output power of continuous-wave (CW) crystalline OPOs and Raman lasers. We further evaluate the power scalability of these two laser technologies by analyzing the cavity architectures and gain materials used in these lasers. This paper also discusses why diamond Raman lasers (DRLs) show tremendous potential as a single laser source for generating exceedingly high output powers and high brightness.


2021 ◽  
Author(s):  
Jae Ha Ryu ◽  
Benjamin Knipfer ◽  
Jeremy D. Kirch ◽  
Robert A. Marsland ◽  
Steve Jacobs ◽  
...  

2021 ◽  
Author(s):  
Maryam Eslami Rasekh ◽  
Navid Hosseinzadeh ◽  
Upamanyu Madhow ◽  
Mark Rodwell

Author(s):  
John Ballato ◽  
Thomas Hawkins ◽  
Peter Dragic ◽  
Nanjie Yu ◽  
Angel Flores ◽  
...  

Author(s):  
Joachim Buldt ◽  
Henning Stark ◽  
Michael Muller ◽  
Christian Grebing ◽  
Cesar Jauregui ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Helena Bestová ◽  
Jules Segrestin ◽  
Klaus von Schwartzenberg ◽  
Pavel Škaloud ◽  
Thomas Lenormand ◽  
...  

AbstractThe Metabolic Scaling Theory (MST), hypothesizes limitations of resource-transport networks in organisms and predicts their optimization into fractal-like structures. As a result, the relationship between population growth rate and body size should follow a cross-species universal quarter-power scaling. However, the universality of metabolic scaling has been challenged, particularly across transitions from bacteria to protists to multicellulars. The population growth rate of unicellulars should be constrained by external diffusion, ruling nutrient uptake, and internal diffusion, operating nutrient distribution. Both constraints intensify with increasing size possibly leading to shifting in the scaling exponent. We focused on unicellular algae Micrasterias. Large size and fractal-like morphology make this species a transitional group between unicellular and multicellular organisms in the evolution of allometry. We tested MST predictions using measurements of growth rate, size, and morphology-related traits. We showed that growth scaling of Micrasterias follows MST predictions, reflecting constraints by internal diffusion transport. Cell fractality and density decrease led to a proportional increase in surface area with body mass relaxing external constraints. Complex allometric optimization enables to maintain quarter-power scaling of population growth rate even with a large unicellular plan. Overall, our findings support fractality as a key factor in the evolution of biological scaling.


2021 ◽  
Vol 64 ◽  
pp. 102507
Author(s):  
Amira Tandirovic Gursel ◽  
Fatih Kılıç

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