Results 81 to 90 of about 13,916 (292)

Invisible Polymer Walls Enhance Reorientational Optical Nonlinearity in Oligothiophene‐Doped Liquid Crystals

Advanced Functional Materials, EarlyView.
The polymer wall stabilized dye‐doped liquid crystals (PWLCs) enhance the sensitivity of photoinduced molecular reorientation in dye‐doped LC systems. The PWLC with an invisible polymer wall successfully reduces the threshold intensity and functions as an optical limiter under the incidence of low intensity light laser source.
Junki Yokota, Yuya Nakata, Erika Katayama, Miho Aizawa, Kyohei Hisano, Shoichi Kubo, Atsushi Shishido   +6 more
wiley   +1 more source

Slotted photonic crystal biosensors

, 2013
Optical biosensors are increasingly being considered for lab-on-a-chip applications due to their benefits such as small size, biocompatibility, passive behaviour and lack of the need for fluorescent labels.
Scullion, Mark Gerard
core  

Mechanoluminescent HOF Nanotransducers Enabled Sono‐Optogenetics in Parkinsonian Rats

Advanced Functional Materials, EarlyView.
We present a mechanoluminescent system utilizing porous hydrogen‐bonded organic frameworks (HOFs) as a toolkit for focused ultrasound‐triggered, non‐invasive light delivery to the deep brain in rats. This approach enables the specific activation of PV‐GPe neurons in dopamine‐depleted Parkinson's disease rat models, resulting in a comparable alleviation
Wenliang Wang, Ilya Pyatnitskiy, Yanshu Shi, Kai Wing Kevin Tang, Yi Xie, Sihan Yu, Thomas Wynn, Xiangping Liu, Ju‐Chun Hsieh, Jinmo Jeong, Weilong He, Brinkley Artman, Anakaren Romero Lozano, Xi Shi, Arjun Sangani, Lief E Fenno, Samantha Santacruz, Banglin Chen, Huiliang Wang   +18 more
wiley   +1 more source

Electrohydrodynamic focusing and light propagation in 2-dimensional microfluidic devices for preconcentration of low abundance bioanalytes [PDF]

, 2012
This thesis presents work on electrohydrodynamic focusing (EHDF) and photon transmission to aid the development of species preconcentration and identification.
Piasecki, Tomasz
core  

Liquid crystal based tunable WDM planar Bragg grating devices based on precision sawn groove substrates

, 2009
Current optical telecommunication systems employ dense Wavelength Division Multiplexing (WDM) techniques to increase the data carrying capacity of fiber networks.
Adikan, F.R.M., Gates, J.C., P. G. R. Smith, Smith, P. G. R., F. R. M. Adikan, B. D. Snow, H. E. Major, D. O. Kundys, J. C. Gates, Snow, B. D., Dyadyusha, A., C. B. E. Gawith, Kundys, D.O., A. Dyadyusha, Gates, J. C., Kaczmarek, M., Gawith, C.B.E., M. Kaczmarek, Major, H.E., Kundys, D. O., Smith, P.G.R., Adikan, F. R. M., Snow, B.D., Major, H. E., Gawith, C. B. E.   +24 more
core   +1 more source

A Dual-Band Filtering Structure for Highly Selective Reconfigurable Bandpass Filter and Filtering Balun

, 2022
This article proposes a filtering structure consisting of two half-wavelength resonators and two open-stub loaded resonators, which generates two third-order passbands.
Ge, Jinqun, Wang, Guoan
core   +1 more source

Dual-band, polarization-insensitive metamaterial perfect absorber based on monolayer graphene in the mid-infrared range

Results in Physics, 2019
A dual-band, polarization-insensitive metamaterials (MMs) perfect absorber based on monolayer graphene in the mid-infrared range were designed and researched.
Hailiang Li, Jiebin Niu, Guanya Wang
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Investigation of simultaneous 2R regeneration of two 40 Gb/s channels in a single optical fiber [PDF]

, 2008
We experimentally investigate the simultaneous all-optical signal processing of two 40-Gb/s wavelength-division multiplexing optical streams spaced by ~5 nm using self-phase modulation and offset filtering in a single highly nonlinear fiber to achieve a ...
Provost, L., Parmigiani, F., Petropoulos, P., Richardson, D.J.   +3 more
core   +1 more source

Numerical Verification of a Polarization-Insensitive Electrically Tunable Far Infrared Band-Stop Meta-Surface Filter

Photonics
Tunable filters have many potential applications in diverse fields, including high-capacity communications, dynamic beam shaping and spectral imaging. Although providing a high-performance solution for actively tunable devices, metasurface combined with ...
Zheng Li, Yuying Lu, Yichi Han, Hanjie Li, Zhenqi Niu, Xiaomin Liu, Chaoyang Wei, Jianda Shao   +7 more
doaj   +1 more source