19 papers · ranked by Valyu relevance
Ke Ou, Harsha Mittemari Rajesh, Sida Cao, Debolina Chakraborty + 12 more
> Department of Mechanical Engineering, Stanford University, Stanford, California 94305, USA Lawrence Livermore National Laboratory, Livermore, California 94551, USA Department of Electrical and Computer Engineering, Princeton University, Princeton, New Jersey 08540, USA Department of Mechanical and Aerospace…
Pedro Mas-Abellán, Pablo Beléndez, Jesús Gea-Caselles, José Carlos García-Vázquez + 4 more
Multidisciplinary technologies are truly driving major transformations in industries, innovating to become more efficient. The need for more efficient renewable energy systems, such as solar energy, has recently been addressed with the innovation of using holographic photonic devices to avoid solar tracking devices as…
Cole Meyer, Joanne Flores, Jason Corliss, Walter Harris
Dual-bandpass spatial heterodyne spectrometers (DB-SHS) enable simultaneous high-resolution measurements of widely separated passbands, providing powerful diagnostics of astrophysical and planetary environments. However, DB-SHS instruments require a single incident beam to span two adjacent diffraction gratings with…
Yue Pan, Zhenyu Wang, Xiping Xu, Liang Xu + 3 more
Title: Summary The diffraction characteristic of digital micromirror device (DMD) is the main factor to reduce the projection contrast, making it incompetent for DMD-based infrared scene projector (IRSP) to evaluate and test advanced infrared imaging systems in the hardware-in-the-loop (HWIL) simulation. In this paper…
Yuhao Xu, Miao Chen, Louis Forestier, Carcenac + 3 more
Hyperuniform metasurfaces promise an unusual form of wave control: the suppression of elastic scattering over extended angular ranges without periodic order. Here, we present a comprehensive experimental and theoretical study of 2D stealthy hyperuniform metasurfaces operating at optical frequencies. In agreement with…
Seunghyun Lee, Byounghyo Lee, Haejun Chung
Waveguide-based augmented-reality (AR) displays offer compact, optical see-through form factors but remain limited by chromatic dispersion, ghosting from parasitic diffraction orders, distortion of the see-through scene, and a restricted eyebox. We present triple-function metasurface couplers designed using…
Solomons, Yakov, Ben-Maimon, Roni + 8 more
We present a practical approach for interfacing light with a two-dimensional atomic tweezer array. Typical paraxial fields are poorly matched to the array's multi-diffraction-order radiation pattern, thus severely limiting the interface coupling efficiency. Instead, we propose to design a field mode that naturally…
Francesco Corazza, Emmanouil Kechaoglou, Leo Guery, Zhonghui Nie + 4 more
The continuous shrinkage of critical dimensions in nanofabrication demands nanometrology at the relevant resolution, which can be achieved using short-wavelength light sources. Most industrial metrology uses periodic structures for process control, exploiting diffraction to probe the fabrication quality of actual…
Qizhang Li, Sachin Prashant Kulkarni, Chenxi Sui, Ting-Hsuan Chen + 8 more
Realizing active metasurfaces with substantial tunability is important for many applications but remains challenging due to difficulties in dynamically tuning light-matter interactions at subwavelength scales. Here, we introduce reversible metal electrodeposition as a versatile approach for enabling active metasurfaces…
Zhongyi Yao, Shuoying Ren, Xinbing Wang, Duluo Zuo + 2 more
Highlights 1. A tunable catadioptric spectrometer was developed by integrating a grating-mirror rotating assembly into a transmission-type VPH (volume phase holographic) grating spectrometer. 2. Two key characteristics of the optical configuration were derived through theoretical analysis. The design ensures that the…
Mads Bertelsen, Peter K. Willendrup, Sunyoung Yoo, Adriano Meligrana + 4 more
Monte Carlo neutron ray-tracing simulations of time-of-flight (TOF)-Laue neutron macromolecular crystal diffraction (n-MX) using the McStas software package were done for the upcoming NMX Macromolecular Diffractometer at the European Spallation Source. Splitting neutron rays that arrive at the crystal lead to dramatic…
Sulaimon Balogun, Andreas E. Vasdekis
Optical imaging systems are fundamentally constrained by a tradeoff between field of view (FoV) and spatial resolution. Long working-distance objectives, routinely used in biological imaging and especially in light-sheet microscopy, provide large FoV but reduced numerical aperture (NA) and magnification, broadening the…
Jian Cao, Sarra Salhi, Jonathan Peltier, Jean-René Coudevylle + 6 more
Achieving simultaneous broadband achromatic focusing and a wide field of view remains a significant challenge for metalenses. In this work, we begin with a quadratic phase profile, enabling full field-of-view designs, and apply dispersion engineering to minimize variations of the focal length across wavelengths…
Shiu Hei Lam, U Abinash Patro, Jan Rothhardt, Thomas Pertsch
The concept of metasurfaces was recently applied to the extreme ultraviolet (EUV) spectral regime, providing a new opportunity for transmissive focusing elements in a regime where materials are highly lossy. The realization of metalenses in the EUV, however, is challenging due to the optical losses and low refractive…
Evelyn R. Smith, Katie L. Gelder, Lewis Hunter-Craig, Daniel A. Bose + 2 more
Fluorescence resonance energy transfer (FRET) is the highly distance dependent (3-10 nm) transfer of energy from a donor to an acceptor fluorophore, with transfer efficiency inversely proportional to the distance between the fluorophores. Consequently FRET serves as a powerful spectroscopic ruler for probing molecular…
Authors not listed
We present a mechanistic framework to characterize photon absorption in quantum dots, enabling rational optimization of image sensor designs. Our analysis is based on the Analytic Path structured-field model, which treats both electrons and photons as extended electromagnetic structures rather than point particles.…
Authors not listed
Heating, ventilation, and air-conditioning (HVAC) systems are major contributors to global energy consumption, underscoring the urgent need for energy-efficient building envelope technologies. Synergistic solar and radiative electrochromism offers a promising solution by leveraging the sun and outer space as…
Liam Shaughnessy, Lauren Vannell, Sulekh Fernando-Peiris, Cristina Rodríguez
Three-photon microscopy enables deep-tissue imaging but is highly sensitive to excitation pulse quality, since three-photon excitation efficiency scales with the cube of instantaneous intensity. Group-delay dispersion (GDD) and third-order dispersion (TOD) accumulated through the laser and microscope optics can…
Takashi Tanida, Md. Royhan Gofur, Takayuki Nakajima
Förster resonance energy transfer (FRET) is a physicochemical phenomenon involving non-radiative energy transfer between donor and acceptor fluorophores. While FRET efficiency primarily depends on the proximity between fluorophores, additional factors also substantially influence the efficiency in living cells.…