165 citations · 201 across the 14 of their papers we have counts for
14 papers
Dual-polarized, mid-infrared nonreciprocal absorption
Simo Pajovic, Yiting Zhao, Yae-Chan Lim +2
The emission and absorption of thermal radiation are usually coupled via Kirchhoff's law or reciprocity, stated as the equality of spectral directional emissivity and absorptivity.…
Nanophotonic control of spatial information in scintillation detectors
Joshua Chen, Simo Pajovic, Seou Choi +9
X-rays enable non-invasive imaging across medicine, security, materials science, and beyond, yet modern systems remain constrained by the need to resolve finer structures at lower…
Dosimetric characterization of a nanophotonic scintillator and applications to real-time in-vivo total body irradiation dosimetry
W. Jeffrey Zabel, Dixin Chen, Louis Martin-Monier +7
Purpose: Recent advances in metasurface photonics and manufacturing have enabled a nanophotonic surface coating to be applied to conventional scintillators, which has been shown to…
Diffractive cascades for polychromatic hard X-ray focusing
William Michaels, Simo Pajovic, Joshua Chen +2
Diffractive focusing of hard X-rays has traditionally required structures with large aspect ratios due to the limited interaction of most materials with X-rays. This has increased…
Visible-NIR-Frequency Hyperbolic Response in Nodal-Line Semimetal PbTaSe
Vivian J. Santamaria-Garcia, Morgan G. Blevins, Simo Pajovic +2
Natural hyperbolic materials offer a powerful platform for light-matter interactions by supporting highly anisotropic electromagnetic modes without the need for artificial patterni…
Wavefront Engineering for Scintillation-Based Imaging
Joshua Chen, Sachin Vaidya, Simo Pajovic +7
Recent research in nanophotonics for scintillation-based imaging has demonstrated promising improvements in scintillator performance. In parallel, advances in nanophotonics have en…
Breakdown of the Kirchhoff's law of thermal radiation by a spatiotemporally modulated nonreciprocal metasurface
Anatoly Efimov, Chun-Chieh Chang, Simo Pajovic +5
Kirchhoff's law of thermal radiation, which dictates that the emissivity of a surface equals its absorptivity under thermal equilibrium, which dictates that the emissivity of a sur…
Nanophotonic thermal management in X-ray tubes
Simo Pajovic, Charles Roques-Carmes, Seou Choi +5
In X-ray tubes, more than 99% of the kilowatts of power supplied to generate X-rays via bremsstrahlung are lost in the form of heat generation in the anode. Therefore, thermal mana…
Large-scale self-assembled nanophotonic scintillators for X-ray imaging
Louis Martin-Monier, Simo Pajovic, Muluneh G. Abebe +9
Scintillators are essential for converting X-ray energy into visible light in imaging technologies. Their widespread application in imaging technologies has been enabled by scalabl…
Nonreciprocal reflection of mid-infrared light by highly doped InAs at low magnetic fields
Simo Pajovic, Yoichiro Tsurimaki, Xin Qian +2
We report an experimental observation of room-temperature nonreciprocal reflection of mid-infrared light from planar highly doped InAs surfaces at low magnetic fields ranging from…
End-to-end design of multicolor scintillators for enhanced energy resolution in X-ray imaging
Seokhwan Min, Seou Choi, Simo Pajovic +5
Scintillators have been widely used in X-ray imaging due to their ability to convert high-energy radiation into visible light, making them essential for applications such as medica…
Nonreciprocal scintillation using one-dimensional magneto-optical photonic crystals
Olivia Y. Long, Simo Pajovic, Charles Roques-Carmes +5
Scintillation describes the conversion of high-energy particles into light in transparent media and finds diverse applications such as high-energy particle detection and industrial…
Casimir force among spheres made of Weyl semimetals breaking Lorentz reciprocity
Yoichiro Tsurimaki, Xin Qian, Simo Pajovic +2
The Casimir force and thermal Casimir force originating from quantum electromagnetic fluctuations at zero and non-zero temperatures, respectively, are significant in nano- and micr…
Large nonreciprocal absorption and emission of radiation in type-I Weyl semimetals with time reversal symmetry breaking
Yoichiro Tsurimaki, Xin Qian, Simo Pajovic +3
The equality between the spectral, directional emittance and absorptance of an object under local thermal equilibrium is known as Kirchhoff's law of radiation. The breakdown of Kir…