Results 221 to 230 of about 130,740 (286)

Quasi‐Single‐Mode Polaritonic Crystal for Hyperbolic Phonon‐Polaritons

Advanced Optical Materials, EarlyView.
Near‐field study of the polaritonic Fourier crystal with α‐MoO3 reveals that the hyperbolic phonon‐polaritons within the Type‐I Reststrahlen band may form a quasi‐single‐mode Bloch wave where only the fundamental mode propagates in the crystal. Our results demonstrate the realization of a quasi‐single‐mode regime for the inherently multimode hyperbolic
Sergey G. Menabde, Yongjun Lim, Alexey Y. Nikitin, Pablo Alonso‐González, Jacob T. Heiden, Heerin Noh, Seungwoo Lee, Min Seok Jang   +7 more
wiley   +1 more source

Spin-Dependent Photoluminescence in Carbon-Based Quantum Dots. [PDF]

Adv Mater
Grant ES, Olorunyomi JF, Scholten SC, Robertson IO, Abraham AN, Srikantamurthy NH, Murdoch BJ, Maye ELH, Del Rosal B, Healey AJ, Doherty CM, Reineck P, Mulet X, Tetienne JP, Broadway DA.   +14 more
europepmc   +1 more source

Cross‐Phase Modulation via Time‐Varying Epsilon‐Near‐Zero Metasurfaces

Advanced Optical Materials, EarlyView.
Time‐varying epsilon‐near‐zero metasurfaces are shown to enable cross‐phase modulation beyond conventional ENZ excitation. By engineering dual absorption bands and exploiting oblique ultrafast pumping, large and broadband frequency translations are achieved at low pump energies.
Rakesh Dhama, Md Imran Hossain, Jesse Pietila, Thomas Fordell, Humeyra Caglayan   +4 more
wiley   +1 more source

Quantum Coherent Coupling in Adjacent Silicon Nanowires Yields Non-Ohmic Photocurrent Enhancement. [PDF]

J Phys Chem Lett
Liu Z, Meng L, Wang Y, Li X, Wang S, Zhuang W.   +5 more
europepmc   +1 more source

Visible‐Light Photoprogrammable Transistors Enabled by an All‐Organic Triplet‐Sensitized Diarylethene Channel Layer

Advanced Optical Materials, EarlyView.
All‐organic channel‐layer OFETs are shown to enable visible‐light photoprogramming via triplet‐sensitized diarylethene switching. Preferential localization of the photoswitch and organic sensitizer in intercrystalline amorphous domains preserves polymer crystalline packing while ensuring short‐range Dexter‐type triplet–triplet energy transfer and solid‐
Jieun Kwon, Syed Zahid Hassan, Gayoung Ham, Seonghyeon Kang, Geoneop Choi, Sanghyeok An, Hye Ryun Sim, Suryeon Jang, Chang Yun Son, Hyojung Cha, Dae Sung Chung   +10 more
wiley   +1 more source

Positive Feedback Organic-on-Silicon Upconversion Devices. [PDF]

Adv Sci (Weinh)
Lampande R, DesOrmeaux JP, Pizano A, Guler U, Hamer JW, Giebink NC.   +5 more
europepmc   +1 more source

Experimental Evidence of Free Carrier Generation in 2D Hybrid Organic–Inorganic Perovskites

Advanced Optical Materials, EarlyView.
ABSTRACT Despite the significant potential of 2D hybrid organic–inorganic perovskites (2DHOIPs) for high‐efficiency optoelectronics application‐comparable to their 3D counterparts, the fundamental carrier photogeneration remains unclear. In contrast to conventional ultrafast optical property characterization, we use ultrafast photocurrent spectroscopy ...
Tuhin Ghosh, Pan Adhikari, Yao Gao, Apparao M. Rao, Dawen Li, Haimei Zheng, Ying Shi, Letian Dou, Jianbo Gao   +8 more
wiley   +1 more source

ZnO Doping-Induced Performance Boost in Co₂TiO₄/n-Si Schottky Self-Powered Photodetectors. [PDF]

ACS Omega
Hussaini AA, Sarilmaz A, Ozel F, Erdal MO, Yildirim M.   +4 more
europepmc   +1 more source

Ultra‐Flexible Dual‐Band Organic Photodetectors for Visible and Near‐Infrared Sensing

Advanced Optical Materials, EarlyView.
An ultra‐flexible dual‐band organic photodetector with a total thickness of 5.6 µm for bio‐sensing is developed. It selectively detects visible and near‐infrared light with high sensitivity by switching the voltage. Peripheral oxygen saturation (SpO2) measurement is demonstrated using the device attached to a finger under a single light source by ...
Sachi Awakura, Hiroaki Jinno, Yusaku Tagawa, Ryota Fukuzawa, Masahito Takakuwa, Takao Someya, Tomoyuki Yokota   +6 more
wiley   +1 more source

Mechanistic Identification of Oxygen Species in the Degradation of CsPbBr₃ Quantum Dot Films Through Real-Time In Situ Monitoring. [PDF]

Materials (Basel)
Lin Z, Song J, Wu H, Li H, Huang R.
europepmc   +1 more source