Intensified photodiode array

Nanosecond pump probc time-resolved resonance Raman experiments were carried out with two Nd YAG lasers (At=7 ns) which provide the pump- (532 nm, 4 mJ) and probe pulses (416 nm, 100 mJ), a triple polychromator equipped with an intensified photodiode array, and a slow spinning cell (25tpm). For every sample, spectra were taken for delay times of At=-20, 0, 20,100 and 500 ns, 1,10,100 and 500 is, and 1ms. ... 

In situ Raman spectra were recorded with a DILOR OMARS 89 spectrophotometer equipped with an intensified photodiode array detector. The emission line at 514.5 nm from Ar+ ion laser (Spectra Physics, Model 164) was used for excitation. The power of the incident beam on the sample was 36 mW. Before the acquisition of the spectrum the sample was heated up to 400°C (2°C/min) and kept at this temperature for 12h to obtain a complete dehydration of the surface. After cooling down to 300°C the spectra were recorded. The same procedure was used to acquire Raman signals of the pure Ti02 support. The final spectra of the catalysts were obtained by subtracting the Ti02 contribution. 

Picosecond Emission Spectroscopy with Intensified Photodiode Arrays... 

An intensified photodiode array (IPDA) detector for onedimensional spatial imaging in the EUV is shown in Figure 2. This type of detector was originally described by Riegler and Moore (14) It consists of a microchannel plate whose output is optically coupled to a self scanning photodiode array. An incident photon produces a photoelectron which is subsequently amplified by the MCP. The exiting electrons are proximity... 

The procedures used for electrochemical roughening of the Ag electrode and adsorption of free FAD and GO onto the electrode surface have also been described previously. SERRS of FAD and GO were obtained using 488.0 or 457.9 nm excitation (Ar+, Coherent INNOVA 90-5) and low laser powers (typically 10 mW). Spectra were acquired with an OMA II (Princeton Applied Research Corp.) system equipped with an intensified photodiode array (Princeton Applied Research Corp., model 1420). In most cases, the spectra were accumulated using 1 second integration time (60 delays) and signal averaging of 25 scans. 

OMD). The OMD consists of many (500-1000) photosensitive elements, each monitoring a different wavelength at the focal plane. Instead of scanning the wavelengths across the exit slit, the dispersed spectrum is focused onto an OMD at the focal plane. An intensified photodiode array can monitor 1000 wavelengths simultaneously. 

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