Search Results - "Bohringer, Karl F."

Photolithographic Patterning of Perovskite Thin Films for Multicolor Display Applications by Zou, Chen, Chang, Cheng, Sun, Di, Böhringer, Karl F, Lin, Lih Y

“…Metal halide perovskites are emerging as attractive materials for light-emitting diode (LED) applications. The external quantum efficiency (EQE) has…”
Get full text

MEMS-actuated metasurface Alvarez lens by Han, Zheyi, Colburn, Shane, Majumdar, Arka, Böhringer, Karl F.

“…Miniature lenses with a tunable focus are essential components for many modern applications involving compact optical systems. While several tunable lenses…”
Get full text

Directing Droplets Using Microstructured Surfaces by Shastry, Ashutosh, Case, Marianne J, Böhringer, Karl F

“…Systematic variation of microscale structures has been employed to create a rough superhydrophobic surface with a contact angle gradient. Droplets are…”
Get full text

Millimeter-scale focal length tuning with MEMS-integrated meta-optics employing high-throughput fabrication by Han, Zheyi, Colburn, Shane, Majumdar, Arka, Böhringer, Karl F.

“…Miniature varifocal lenses are crucial for many applications requiring compact optical systems. Here, utilizing electro-mechanically actuated 0.5-mm aperture…”
Get full text

Converting Vertical Vibration of Anisotropic Ratchet Conveyors into Horizontal Droplet Motion by Dong, Yan, Holmes, Hal R, Böhringer, Karl F

“…An anisotropic ratchet conveyor is an asymmetric, periodic, micropatterned surface that propels droplets when vibrated with a sinusoidal signal at certain…”
Get full text

Directional Droplet Transport and Fog Removal on Textured Surfaces Using Liquid Dielectrophoresis by Sun, Di, Bohringer, Karl F.

“…This paper reports a droplet super-spreading and directional transport device using anisotropic ratchet conveyors (ARCs) and liquid dielectrophoresis (L-DEP)…”
Get full text

Self-Cleaning: From Bio-Inspired Surface Modification to MEMS/Microfluidics System Integration by Sun, Di, Böhringer, Karl F

“…This review focuses on self-cleaning surfaces, from passive bio-inspired surface modification including superhydrophobic, superomniphobic, and superhydrophilic…”
Get full text

Nonvolatile Phase-Only Transmissive Spatial Light Modulator with Electrical Addressability of Individual Pixels by Fang, Zhuoran, Chen, Rui, Fröch, Johannes E., Tanguy, Quentin A. A., Khan, Asir Intisar, Wu, Xiangjin, Tara, Virat, Manna, Arnab, Sharp, David, Munley, Christopher, Miller, Forrest, Zhao, Yang, Geiger, Sarah, Böhringer, Karl F., Reynolds, Matthew S., Pop, Eric, Majumdar, Arka

“…Active metasurfaces with tunable subwavelength-scale nanoscatterers are promising platforms for high-performance spatial light modulators (SLMs). Among the…”
Get full text

Broadband thermal imaging using meta-optics by Huang, Luocheng, Han, Zheyi, Wirth-Singh, Anna, Saragadam, Vishwanath, Mukherjee, Saswata, Fröch, Johannes E., Tanguy, Quentin A. A., Rollag, Joshua, Gibson, Ricky, Hendrickson, Joshua R., Hon, Philip W. C., Kigner, Orrin, Coppens, Zachary, Böhringer, Karl F., Veeraraghavan, Ashok, Majumdar, Arka

“…Subwavelength diffractive optics known as meta-optics have demonstrated the potential to significantly miniaturize imaging systems. However, despite impressive…”
Get full text

Large field-of-view short-wave infrared metalens for scanning fiber endoscopy by Xie, Ningzhi, Carson, Matthew D, Fröch, Johannes E, Majumdar, Arka, Seibel, Eric J, Böhringer, Karl F

“…The scanning fiber endoscope (SFE), an ultrasmall optical imaging device with a large field-of-view (FOV) for having a clear forward view into the interior of…”
Get full text

Transport velocity of droplets on ratchet conveyors by Holmes, Hal R., Böhringer, Karl F.

“…Anisotropic ratchet conveyors (ARC) are a type of digital microfluidic system. Unlike electrowetting based systems, ARCs transport droplets through a passive,…”
Get full text

Long wavelength infrared imaging under ambient thermal radiation via an all-silicon metalens by Huang, Luocheng, Coppens, Zachary, Hallman, Kent, Han, Zheyi, Böhringer, Karl F., Akozbek, Neset, Raman, Ashok, Majumdar, Arka

“…Further miniaturization of imaging systems is prevented by the prevalent, traditional bulky refractive optics today. Meta-optics have recently generated great…”
Get full text

Real time full-color imaging in a Meta-optical fiber endoscope by Fröch, Johannes E., Huang, Luocheng, Tanguy, Quentin A.A., Colburn, Shane, Zhan, Alan, Ravagli, Andrea, Seibel, Eric J., Böhringer, Karl F., Majumdar, Arka

“…Endoscopes are an important component for the development of minimally invasive surgeries. Their size is one of the most critical aspects, because smaller and…”
Get full text

Dual Band Computational Infrared Spectroscopy via Large Aperture Meta-Optics by Fröch, Johannes E., Colburn, Shane, Zhan, Alan, Han, Zheyi, Fang, Zhuoran, Saxena, Abhi, Huang, Luocheng, Böhringer, Karl F., Majumdar, Arka

“…An important challenge in contemporary photonics research is the miniaturization of optical components and devices to facilitate their deployment in more…”
Get full text

Photonic advantage of optical encoders by Huang, Luocheng, Tanguy, Quentin A. A., Fröch, Johannes E., Mukherjee, Saswata, Böhringer, Karl F., Majumdar, Arka

“…Light’s ability to perform massive linear operations in parallel has recently inspired numerous demonstrations of optics-assisted artificial neural networks…”
Get full text

Spectrally Encoded Nonscanning Imaging through a Fiber by Xie, Ningzhi, Tanguy, Quentin A. A., Fröch, Johannes E., Böhringer, Karl F., Majumdar, Arka

“…Recent advancements in neuroimaging and microsurgery have sparked an increasing demand to capture images with miniaturized optical probes such as optical…”
Get full text

Partially Coherent Double-Phase Holography in Visible Wavelength Using Meta-Optics by Mukherjee, Saswata, Tanguy, Quentin A. A., Fröch, Johannes E., Shanker, Aamod, Böhringer, Karl F., Brunton, Steven, Majumdar, Arka

“…Ultrathin flat meta-optics have shown great promise for holography in recent years. However, most of the reported meta-optical holograms rely on only phase…”
Get full text

Inverse‐Designed Meta‐Optics with Spectral‐Spatial Engineered Response to Mimic Color Perception by Munley, Chris, Ma, Wenchao, Fröch, Johannes E., Tanguy, Quentin A. A., Bayati, Elyas, Böhringer, Karl F., Lin, Zin, Pestourie, Raphaël, Johnson, Steven G., Majumdar, Arka

“…Meta‐optics have rapidly become a major research field within the optics and photonics community, strongly driven by the seemingly limitless opportunities made…”
Get full text

Thermally Actuated Omnidirectional Walking Microrobot by Erdem, E Yegân, Yu-Ming Chen, Mohebbi, Matthew, Suh, John W, Kovacs, Gregory, Darling, Robert B, Böhringer, Karl F

“…We describe a walking microrobot that is propelled by cilialike thermal bimorph actuator arrays. The robot consists of two actuator array chips, each having an…”
Get full text

Vibration Induced Transport of Enclosed Droplets by Holmes, Hal R, Böhringer, Karl F

“…The droplet response to vibrations has been well characterized on open substrates, but microfluidic applications for droplets on open systems are limited by…”
Get full text