Results 91 to 100 of about 2,049 (291)

Optical characterization of semiconductor saturable absorbers [PDF]

, 2018
Semiconductor saturable absorber mirror (SESAM) devices have become a key component of ultrafast passive mode-locked laser sources. Here we describe in more detail how the key SESAM parameters such as saturation fluence, modulation depth, and ...
Haiml, M., Grange, R., Keller, U.
core  

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

Oxygen‐Tunnel Indium Tin Oxide Vertical Channel Transistors with Enhanced Current Density and Reliability for Monolithic 3D Compute‐In‐Memory Systems

Advanced Functional Materials, EarlyView.
Oxygen‐tunnel (OT) indium tin oxide (ITO) vertical channel transistors (VCTs) enable reliable, high‐density gain‐cell memory for monolithic 3D integration. A sandwiched SiN/SiO2/SiN OT stack selectively regulates oxygen transport, suppressing parasitic electrode oxidation while stabilizing channel oxygen vacancies, thereby suppressing carrier injection
Hyeonho Gu, Haksoon Jung, Yongwoo Lee, Hoichang Jeong, Yanfeng Zhao, Heesoo Yang, Minho Park, Hyeonjin Lee, Seunghun Baek, Minju Song, Junghwan Kim, Youngmin Jo, Hyunjin Park, Munhyeon Kim, Jae‐Joon Kim, Kyuho Jason Lee, Byungjo Kim, Jimin Kwon   +17 more
wiley   +1 more source

Picosecond phase-conjugate reflection from organic dye saturable absorbers [PDF]

, 1980
Phase conjugation with conversion efficiences of up to 50% has been obtained in DODCI and other saturable absorbers with picosecond pulses from a mode-locked dye laser.
Bradley, D.J., Sibbet, W., Tocho, Jorge Omar   +2 more
core  

Effect of laser pulse shape on optical limiting properties of reverse saturable absorbers

, 2000
Using an analytical approach we quantitatively estimate the effects of the pulse shape and material parameters on the intensity-dependent transmittance of reverse saturable absorbers.
A. Kobyakov, Hagan, D. J., D. J. Hagan, Van Stryland, E. W., E. W. Van Stryland, Kobyakov, A.   +5 more
core   +1 more source

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

Advanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee, Yun‐Tae Kim, Hwarang Choi, Sanghwan Park, Seongyeop Lim, Chang Young Lee   +5 more
wiley   +1 more source

Inkjet-printed optically uniform transition metal dichalcogenide saturable absorbers

, 2018
We report self-starting mode-locking in all-fiber erbium-doped lasers utilizing inkjetprinted transition metal dichalcogenide saturable absorbers, exhibiting highly optical uniformity, with < 5% standard ...
Wu, Q, Hu, Y, Jin, X, Zhang, M, Hu, G, Li, T, ,, Wu, T, Albrow-Owen, T, Zheng, Z, Hasan, T, Howe, R   +11 more
core  

Mode-Locked All-Fiber Lasers at Both Anomalous and Normal Dispersion Regimes Based on Spin-Coated $\hbox{MoS}_{2}$ Nano-Sheets on a Side-Polished Fiber

IEEE Photonics Journal, 2015
We demonstrate an all-fiberized mode-locked laser by employing Molybdenum Disulfide (MoS2) spin-coated onto a side-polished fiber (SPF) as an in-line saturable absorber.
Reza Khazaeinezhad, Sahar Hosseinzadeh Kassani, Hwanseong Jeong, Tavakol Nazari, Dong-Il Yeom, Kyunghwan Oh   +5 more
doaj   +1 more source

Low-loss skimming waveguides with controllable mode leakage for on-chip saturable absorbers. [PDF]

Nanophotonics, 2023
Yang Y, Zhong L, Cui Y, Wang Y, Chen D, Lau KY, Liu X, Ma Z, Barillaro G, Chen Z, Qiu J.   +10 more
europepmc   +1 more source