Zobrazeno 1 - 10
of 14
pro vyhledávání: '"David Kupka"'
Publikováno v:
Case Studies in Thermal Engineering, Vol 64, Iss , Pp 105436- (2024)
In industrial facilities, a considerable amount of waste heat is often generated. However, due to the high costs associated with traditional methods of recovery, which do not align with the economic interests of enterprises, this waste heat is freque
Externí odkaz:
https://doaj.org/article/d837646d770e4c21af097683a97f02cf
Optimization of Third Harmonic Conversion Efficiency in the Presence of a Spatially Localized Plasma
Autor:
Randy A. Bartels, David Kupka
Publikováno v:
IEEE Journal of Quantum Electronics. 48:790-796
A computational optimization of parameters leading to maximal third harmonic conversion efficiency in the presence of a laser-induced plasma is introduced, building on previous experimental work. The model contains full spatial and temporal dynamics
Publikováno v:
Chemical Physics Letters. 490:97-101
Through use of coherence-modulated optical third harmonic generation, we simultaneously observe and distinguish coherent phonon oscillations from the bulk and interface of Bi3Ge4O12, which lacks inversion symmetry. We report the first observation of
Publikováno v:
MATEC Web of Conferences, Vol 168, p 08005 (2018)
The aim of the article is to assess the possibilities of using low-potential heat by means of industrial heat pumps for heating purposes. The article focused on a relatively specific area, namely the geothermal energy of mine water.
Autor:
Randy A. Bartels, David Kupka
Publikováno v:
CLEO:2011 - Laser Applications to Photonic Applications.
A non-iterative algorithm applied on nanosphere induced far field third harmonic signals capable of retrieving the full vector third order polarization densities and fundamental field at the focal plane is presented.
Autor:
David Kupka, Randy A. Bartels
Publikováno v:
2010 IEEE Photinic Society's 23rd Annual Meeting.
An algorithm fully characterizing vector focal plane third order polarization densities and fundamental fields for tightly focused beams through analysis of far field third harmonic intensities is presented.
Publikováno v:
2010 IEEE Photinic Society's 23rd Annual Meeting.
Contributions to coherent vibrational modulation of third harmonic generation across an interface include a bulk coherent second hyper-Raman scattering and an interface-specific Fresnel boundary modulation. Interface scans permit separation of the bu
Publikováno v:
SPIE Proceedings.
In optical microscopy, the polarization state of the focal field strongly influences formed images due to its interactions with the sample and the effective focal spot size. We demonstrate experimentally that control over the spatial profile of the f
Publikováno v:
LEOS 2008 - 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society.
We demonstrate complete control over the polarization, phase and amplitude state of an ultrafast laser pulse using a single, linear spatial light modulator. Characterization and applications of vector pulse shaping will also be discussed.
Publikováno v:
Applied optics. 47(9)
A simple interferometer for the characterization of axicon lenses is presented. The phase cone acquired by a wave propagating through an axicon, when interfered with a collinear reference wave, produces a nearly cylindrically symmetric self-reference