A5059926004- Advanced Fiber Laser Technologies
- Laser-Matter Interactions and Applications
- Photorefractive and Nonlinear Optics
- Photonic Crystal and Fiber Optics
- Photonic and Optical Devices
- Perovskite Materials and Applications
- Solid State Laser Technologies
- Laser-Plasma Interactions and Diagnostics
- Optical Network Technologies
- Advanced X-ray Imaging Techniques
- Mitochondrial Function and Pathology
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced Photocatalysis Techniques
- Cell Image Analysis Techniques
- Organic Light-Emitting Diodes Research
- Protein Kinase Regulation and GTPase Signaling
- Organic Electronics and Photovoltaics
- Spectroscopy and Laser Applications
- Luminescence and Fluorescent Materials
- Molecular Junctions and Nanostructures
- graph theory and CDMA systems
- Conducting polymers and applications
- Advanced Electron Microscopy Techniques and Applications
- Advanced Fluorescence Microscopy Techniques
- Optical Polarization and Ellipsometry
National Tsing Hua University
2016-2025
University of Manchester
2022-2025
Korea University
2006-2022
Ludwig-Maximilians-Universität München
2016
Zhejiang Gongshang University
2008
Purdue University West Lafayette
2004-2005
Purdue University Northwest
2005
Vanderbilt University
1987-1994
Chang Gung University
1994
Institute of Biomedical Science
1994
Destructive nonlinear processes have limited the useful input power to a few megawatts for supercontinuum generation in bulk material. Consequently, reliable high-power, high-pulse-energy condensed media has not been realized. Here, we describe an intense femtosecond generated solid medium with pulse energy and mode quality that approach those gas phase while preserving advantages of being compact, simple operate, highly reproducible. This is achieved by strategically placing several thin...
Self-assembled monolayers (SAMs) offer the advantage of facile interfacial modification, leading to significant improvements in device performance. In this study, we report design and synthesis a new series carboxylic acid-functionalized porphyrin derivatives, namely AC-1, AC-3, AC-5, present, for first time, strategy exploit large π-moiety porphyrins as backbone interfacing indium tin oxide (ITO) electrode perovskite active layer an inverted solar cell (PSC) configuration. The electron-rich...
Abstract Designing an organic polymer photocatalyst for efficient hydrogen evolution with visible and near-infrared (NIR) light activity is still a major challenge. Unlike the common behavior of gradually increasing charge recombination while shrinking bandgap, we present here series nanoparticles (Pdots) based on ITIC BTIC units different π-linkers between acceptor-donor-acceptor (A-D-A) repeated moieties polymer. These polymers act as single H2 under both NIR light, without combining or...
A protein (FA) has been isolated from rabbit muscle which two functions: one is the activation of ATP WMg-dependent phosphatase (see previous paper) (1) and second phosphorylation concommitant inactivation glycogen synthase, independent cyclic AMP or Ca ions.The activities co-purify throughout purification scheme, reside in single band that purified preparation shows discontinuous acrylamide gel electrophoresis.Heat experiments with showed a parallel decrease both time.GTP could efficiently...
An ATP-Mg-dependent protein phosphatase (Fc) was purified to near homogeneity from rabbit muscle.The enzyme completely devoid of any spontaneous activity but could be activated by a activator (FA) in the presence ATP and Mg ions.The inactive migrated as single band on sodium dodecyl sulfate-gel electrophoresis, discontinuous gel where potential located main band.The molecular weight determined sulfate electrophoresis or sucrose density centrifugation found 70,000.Fc filtration 140,000...
Generation of octave-spanning spectrum that spans from 570 nm to 1300 utilizing 1030 170 fs pulses a Yb:KGW laser and two-stage multiple-plate arrangement is demonstrated. 3.21 sub-single-cycle are obtained after dispersion compensation. The high compression ratio more than 50 times achieved for two scenarios with widely different parameters including input peak power at 1 kHz repetition rate modest 100 kHz. output have good spatial mode quality exhibit long-term stability. flexibility...
Abstract Using a transfer printing technique, we imprint layer of designated near-infrared fluorescent dye BTP-eC9 onto thin Pt(II) complex, both which are capable self-assembly. Before integration, the complex gives intense deep-red phosphorescence maximized at ~740 nm, while shows fluorescence > 900 nm. Organic light emitting diodes fabricated under imprinted bilayer architecture harvest most phosphorescence, undergoes triplet-to-singlet energy to dye, resulting in high-intensity...
A novel series of excited-state intramolecular proton transfer (ESIPT) emitters, namely, DPNA, DPNA-F, and DPNA-tBu, endowed with dual hydrogen bonds, were designed synthesized. In the condensed phase, DPNAs exhibit unmatched absorption emission spectral features, where minor 0–0 peak becomes a major one in emission. Detailed spectroscopic dynamic approaches conclude fast ground-state equilibrium among enol–enol (EE), enol–keto (EK), keto–keto (KK) isomers. The ratio can be fine-tuned by...
In pursuing high stability and power conversion efficiency for organic photovoltaics (OPVs), a sequential deposition (SD) approach to fabricate active layers with p-i-n structures (where p, i, n represent the electron donor, mixed donor:acceptor, acceptor regions, respectively, distinctively different from bulk heterojunction (BHJ) structure) has emerged. Here, we present novel that by incorporating two polymer donors,
We demonstrate a high-performance ultrafast broadband time-resolved photoluminescence (TRPL) system based on the transient grating spectroscopy (TGPLS) technique. The core of is Kerr effect-induced (TG) optical gate driven by high repetition rate ultrashort laser pulses at 1030 nm with micro-Joule pulse energy. Satisfying demands applications, setup achieves sensitivity, rapid data acquisition, time resolution, and wide spectral window from ultraviolet to near-infrared. resolution can be...
This paper describes the demonstration of 2.5-Gb/s four-user optical-code-division-multiple-access (OCDMA) system operating at bit-error rate /spl les/10/sup -11/ utilizing programmable spectral phase encoding, an ultrasensitive (/spl sim/200 fJ/b) periodically poled lithium-niobate-waveguide nonlinear waveform discriminator and 10G Ethernet receiver. A comprehensive description this ultra-short-pulse phase-coded OCDMA is presented. On subsystem level, two key component technologies, namely,...
Abstract Although vacuum‐deposited metal halide perovskite light‐emitting diodes (PeLEDs) have great promise for use in large‐area high‐color‐gamut displays, the efficiency of vacuum‐sublimed PeLEDs currently lags that solution‐processed counterparts. In this study, highly efficient are prepared through a process optimizing stoichiometric ratio sublimed precursors under high vacuum and incorporating ultrathin under‐ upper‐layers emission layer (EML). contrast to situation most organic...
Lately, carbazole-based self-assembled monolayers (SAMs) are widely employed as effective hole-selective layers (HSLs) in inverted perovskite solar cells (PSCs). Nevertheless, these SAMs tend to aggregate solvents due their amphiphilic nature, hindering the formation of a monolayer on ITO substrate and impeding passivation deep defects perovskites. In this study, series new including DPA-B-PY, CBZ-B-PY, POZ-B-PY, POZ-PY, POZ-T-PY, POZ-BT-PY synthesized, which interfacial repairers coated...
Our study underscores that ICTDB, a polymer with one malononitrile substitution, outperforms in the HER and displays enhanced ultrafast charge transfer capabilities.
Abstract The current bottleneck in the development of efficient photocatalysts for hydrogen evolution is limited availability high‐performance acceptor units. Over past nine years, dibenzo[b,d]thiophene sulfone (DBS) has been preferred choice unit. Despite extensive exploration alternative structures as potential replacements DBS, a superior substitute remains elusive. In this study, symmetry‐breaking strategy was employed on DBS to develop novel unit, BBTT‐1SO. asymmetric structure BBTT‐1SO...
The mechanism of activation the Mg(II)=ATPdependent phosphatase by kinase FA has been investigated.The inactive protein can be represented as FpM, where Fc is catalytic component and M heat-stable modulator (also known inhibitor-2).Phosphorylation demonstrated during Fc*M.In addition, continuous ATP hydrolysis observed.This suggests that a cyclic phosphorylation-dephosphorylation reaction continuously occurring activation.It proposed phosphorylation causes an isomerization in to generate...
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We demonstrate efficient pulse compression of a 13.4 MHz, 534 fs, 123 W, Yb:YAG thin-disk oscillator down to 27 fs at 98 W average power, resulting in record-high 166 MW peak power from an amplifier-free oscillator-driven setup. Our compressor is based on two stages: one multipass cell allowing us reduce the duration sub-90 and, subsequently, multiple-plate compressor, reach fs. The overall efficiency 80%, and beam has excellent quality homogeneity. In addition, we further spectral...
Optical pump-probe spectroscopy is a powerful tool for the study of non-equilibrium electronic dynamics and finds wide applications across range fields, from physics chemistry to material science biology. However, shortcoming conventional that photoinduced changes in transmission, reflection scattering can simultaneously contribute measured differential spectra, leading ambiguities assigning origin spectral signatures ruling out quantitative interpretation spectra. Ideally, these methods...
The exploration of deactivation mechanisms for near-infrared(NIR)-emissive organic molecules has been a key issue in chemistry, materials science and molecular biology. In this study, based on transient absorption spectroscopy grating photoluminescence spectroscopy, we demonstrate that the aggregated PtII complex 4H (efficient NIR emitter) exhibits collective out-of-plane motions with frequency 32 cm-1 (0.96 THz) excited states. Importantly, similar THz characteristics were also observed...
We demonstrate a four-user 10-Gb/s spectrally phase-coded optical code-division multiple-access system via nonlinear processing with ultralow power (/spl sim/30 fJ/bit). Full interference suppression is achieved in time-slotted scheme without the need for chip-level coordination and synchronous detection. Performance degradation caused by pulse overlap between users investigated.
The activating factor FA of the ATP'Mg-dependent protein phosphatase F,M was purified to near homogeneity from pig brain by a procedure involving chromatography on phosphocellulose, phosvitin-Sepharose 4B, and Blue Sepharose CL-GB.A specific myelin basic (MBP) kinase found co-purify with in constant ratio throughout purification.It also proved impossible separate two activities nondenaturing gel electrophoresis 5-20% sucrose density gradient ultracentrifugation.Kinetic study indicated that...
A high molecular weight protein phosphatase was purified from rabbit skeletal muscle displaying activity toward phosphorylase Q and synthase b isolated the same tissue.The extensively enzyme shown to have a M, = 260,000 by gel filtration dissociated in sucrose density gradient centrifugations into 70,000 species.The 70,000-dalton form, resulting preparative centrifugations, be homogeneous on electrophoresis sodium dodecyl sulfate exhibited both activities identical with species.Treatment of...