A pulsed optoelectronic microwave source with high power and frequency tunability

The data used in this paper have also been uploaded to the Figshare website under the identifier: 10.6084/m9.figshare.29484293. ‘fig1.xlsx’： Fig. 1 (d) Comparison of output power and frequency tuning range between optoelectronic microwave sources and solid-state power amplifier microwave sources in the 0-2.5 GHz frequency band. (e) Comparison of the performance metrics of this study with existing optoelectronic devices. ‘fig3.xlsx’： Fig.3 (b) Response time design: the impact of total response time on output voltage at different frequencies. (c) Comparison of response times between junction-type and photoconductive devices (with the same conduction area: 4.5 mm²). (d) Carrier lifetime testing: Fitting result of transient absorption spectra of two materials (Sample 1 and Sample 2). (e) Normalized output waveform and voltage–frequency characteristics under varying response times. (f) Output peak voltage across the 1–4 GHz band for different electron capture cross-sections. (g) Effect of increasing the N/V doping concentration from 0.8×1017/2×1017 cm-3 to 1.2×1017/3×1017 cm-3 on output power under different load resistances. ‘fig4.xlsx’： Fig.4 (b) The electric field and current density distribution on the surface. (c) Dark-state breakdown waveform of the device and schematic of electrode edge damage. (e) Relationship between AZO surface transmittance and film thickness. (f) Temporal evolution of total optical absorption as a function of incident intensity. (g) Variation of the device's output current amplitude with bias voltage and incident light energy. (h) Power capacity test results of the device under a bias voltage of 30 kV and a single-pulse light energy of 35 mJ. (i) Comparison of the maximum peak current and power capacity in the photoconductive device field. ‘fig5.xlsx’： Fig.5 (a) Output waveforms of the OEMS at modulation frequencies of 0.5–1.5 GHz. (b) Frequency spectra of the output signal. (c) Frequency–power characteristic of the OEMS. ‘fig6-abcf.xlsx’, ‘fig6-e-1.xlsx’, ‘fig6-e-2.xlsx’, ‘fig6-e-3.xlsx’, ‘fig6-e-4.xlsx’,‘fig6-e-combing.xlsx’： Fig.6 (a) Optical signal waveform within the measurement window. (b) Time-jitter sequence of the optical signal. (c) Modified phase-noise power spectrum. (e) Statistical values of the far-field amplitude for single-path and array radiation. (f) Radiation pattern of the array.