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| Open AccessSingle-pixel p-graded-n junction spectrometers
The miniaturization of spectrometers to a submillimeter-scale footprint opens opportunities for applications in hyperspectral imaging and lab-on-a-chip systems. Here, the authors report a high-performance single-pixel photodetector spectrometer based on the III-V semiconductor p-graded-n junction, featuring a voltage-tunable optical response.
- Jingyi Wang
- , Beibei Pan
- & Baile Chen
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Article
| Open AccessScalable integrated two-dimensional Fourier-transform spectrometry
The authors propose and demonstrate a novel integrated spectrometer that measures any arbitrary spectrum with two-dimensional Fourier transform, breaking the scalability limit in chip-scale spectrometry.
- Hongnan Xu
- , Yue Qin
- & Hon Ki Tsang
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Article
| Open AccessRapid handheld time-resolved circularly polarised luminescence photography camera for life and material sciences
Despite their high brightness and long-lived emission, lanthanide based circularly polarised luminophores have not been fully exploited for real-life application. Here, the authors present an all solid-state circularly polarised luminescence camera to facilitate ad hoc time-resolved enantioselective differential chiral contrast-based one-shot photography that can be applied in life and material sciences.
- Davide F. De Rosa
- , Patrycja Stachelek
- & Robert Pal
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Article
| Open AccessDual-comb thin-disk oscillator
Achieving high output powers in dual-comb sources is important for possible applications like deep UV high resolution spectroscopy. Here the authors demonstrate a fully passive scheme of generating a set of high-power dual-combs from a thin-disc gain medium.
- Kilian Fritsch
- , Tobias Hofer
- & Oleg Pronin
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Article
| Open AccessMapping the ultrafast flow of harvested solar energy in living photosynthetic cells
During photosynthesis, energy is transferred from photosynthetic antenna to reaction centers via ultrafast energy transfer. Here the authors track energy transfer in photosynthetic bacteria using two-dimensional electronic spectroscopy and show that these transfer dynamics constrain antenna complex organization.
- Peter D. Dahlberg
- , Po-Chieh Ting
- & Gregory S. Engel
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Article
| Open AccessUnified model for singlet fission within a non-conjugated covalent pentacene dimer
Singlet fission is an important process occurring in solar cells, however the mechanism is not well understood. Here the authors reveal intermediates during singlet fission of a non-conjugated pentacene dimer, developing a single kinetic model to describe the data over seven temporal orders of magnitude at room and cryogenic temperatures.
- Bettina S. Basel
- , Johannes Zirzlmeier
- & Dirk M. Guldi