Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Jahromi, A. K."'
Autor:
Jahromi, Ali K., Villinger, Massimo L., Halawany, Ahmed El, Shabahang, Soroush, Kondakci, H. Esat, Perlstein, Joshua D., Abouraddy, Ayman F.
Coherent perfect absorption (CPA) refers to interferometrically induced complete absorption of incident light by a partial absorber independently of its intrinsic absorption (which may be vanishingly small) or its thickness. CPA is typically realized
Externí odkaz:
http://arxiv.org/abs/2104.08706
Autor:
Shabahang, S., Jahromi, Ali. K., Pye, L. N., Perlstein, J. D., Villinger, M. L., Abouraddy, Ayman F.
Coherent perfect absorption (CPA) is an interferometric effect that guarantees full absorption in a lossy layer independently of its intrinsic losses. To date, it has been observed only at a single wavelength or narrow bandwidths, whereupon wavelengt
Externí odkaz:
http://arxiv.org/abs/2011.04205
Diffusing wave spectroscopy (DWS) is a well-known set of methods to measure the temporal dynamics of dynamic samples. In DWS, dynamic samples scatter the incident coherent light, and the information of the temporal dynamics is encoded in the scattere
Externí odkaz:
http://arxiv.org/abs/2010.13979
Infrared light scattering methods have been developed and employed to non-invasively monitor human cerebral blood flow (CBF). However, the number of reflected photons that interact with the brain is low when detecting blood flow in deep tissue. To ta
Externí odkaz:
http://arxiv.org/abs/2009.00002
Autor:
Villinger, Massimo L., Shiri, Abbas, Shabahang, Soroush, Jahromi, Ali K., Nasr, Magued B., Villinger, Christopher H., Abouraddy, Ayman F.
Minimizing the material usage in thin-film solar cells can reduce manufacturing costs and enable mechanically flexible implementations, but concomitantly diminishes optical absorption. Coherent optical effects can help alleviate this inevitable drawb
Externí odkaz:
http://arxiv.org/abs/1911.09276
Autor:
Jahromi, Ali. K., Abouraddy, Ayman F.
Short-length fiber lasers are key elements for device integration in fiber systems. However, efficiently absorbing a pump beam in a short ion-doped fiber remains a challenge. We present an approach that renders a weakly absorbing short-length Er-dope
Externí odkaz:
http://arxiv.org/abs/1706.04968
Autor:
Jahromi, Ali K., Shabahang, Soroush, Kondakci, H. Esat, Orsilla, Seppo, Melanen, Petri, Abouraddy, Ayman F.
Publikováno v:
ACS Photonics 4, 1026-1032 (2017)
A mirror that reflects light fully and yet is transparent appears paradoxical. Current so-called transparent or "one-way" mirrors are not perfectly reflective and thus can be distinguished from a standard mirror. Constructing a transparent "perfect"
Externí odkaz:
http://arxiv.org/abs/1706.02218
PT-symmetry in optics is a condition whereby the real and imaginary parts of the refractive index across a photonic structure are deliberately balanced. This balance can lead to a host of novel optical phenomena, such as unidirectional invisibility,
Externí odkaz:
http://arxiv.org/abs/1706.02224
Autor:
Martin, Lane, Mardani, Davood, Kondakci, H. Esat, Larson, Walker D., Shabahang, Soroush, Jahromi, Ali K., Malhotra, Tanya, Vamivakas, A. Nick, Atia, George K., Abouraddy, Ayman F.
Interferometry is one of the central organizing principles of optics. Key to interferometry is the concept of optical delay, which facilitates spectral analysis in terms of time-harmonics. In contrast, when analyzing a beam in a Hilbert space spanned
Externí odkaz:
http://arxiv.org/abs/1611.07540
Autor:
Rastegarian, Ahmad, Abedi, Hassanali, Jahromi, Hossein K., Zarei, Safar, Nematollahi, Arash, Mansouri, Esrafil, Sameni, Hadi
Publikováno v:
In Journal of Acupuncture and Meridian Studies February 2020 13(1):19-24
