Optics A Two-Photon E1-M1 Optical Clock UNIVERSITY OF MICHIGAN Aaron E. Leanhardt AldenEmily AAn allowed E1-M1 excitation scheme creates optical access to the ${^1S_0}ightarrow {^3P_0}$ clock transition in group II type atoms. This method does not require the hyperfine mixing or ...
Recent research has focussed on two-photon lithography, which uses a resin that is largely transparent to the wavelength of light concerned, but critically, can be polymerized with enough energy density (i.e. the method requires multiple photons to be simultaneously absorbed.) This is achieved by...
In vivo calcium imaging of flies expressing GCaMP6f was performed at 5.92 frames per second, 256 X 256 pixels resolution, using a Two-Photon microscope (Scientifica) controlled by ScanImage 3.8 software.75 Fluorescence was excited by a Ti-Sapphire laser (Chameleon Ultra II, Coherent) at ∼140...
The experiments were conducted at the CASIC, Beijing, and we finished the whole process in two laboratories in the same building. The experiments can be divided into 2 Periods (shown in Fig. 3). In Period 1, the geopotential difference measurement was conducted with the fixed clock CA located...
Two-Photon Laurdan Studies of the Ternary Lipid Mixture DOPC:SM:Cholesterol Reveal a Single Liquid Phase at Sphingomyelin:Cholesterol Ratios Lower Than 1. Langmuir 31, 2808–2817, https://doi.org/10.1021/la504251u (2015). 26. Knight, J. D., Lerner, M. G., Marcano-Velazquez, J. G...
used, two pixels are output every Clock_x period. When Clock_x is high, the first pixel is selected; when Clock_x is low, the next pixel is selected. Consequently, during one complete period of Clock_x two pixels are read out by the output amplifier. Table 7. READOUT TIMING ...
We also rule out both pump-induced nonlinear effects (such as two-photon absorption) and thermal-induced artefacts, thanks to the low energy-per-pulse and the single-trace very short acquisition time, respectively. Figure 2(a) demonstrates the temporal evolution of the population integrated ...
The two sets of voltage domain storage capacitor per pixel enable a multiple gain readout to realize single exposure high dynamic range (SEHDR) in the GS operation. As a result, an 80dB SEHDR GS operation without rolling shutter distortions and motion artifacts has been achieved. Additionally,...
Optical crosstalk is caused by undesirable photo generated electrons as a result of light incident in the lateral direction of the pixel. There are two approaches for degradation of optical crosstalk. The first approach prevents light from entering the PPD of adjacent pixels using a light guide, ...
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