According to the information shared, I believe you can use the following code to obtain the date-time in microseconds
currentTime = datetime('now', 'Format', 'yyyy-MM-dd HH:mm:ss.SSSSSS');
The above code will store the date-time(in microseconds) when you run the code in the currentTime varibale.
Now, to generate a time axis with microsecond precision, you can use the following code:
duration = input('Enter duration: ');
startTime = currentTime;
endTime = startTime + seconds(duration);
timeAxis = startTime:duration(0, 0, 0.000001):endTime;
disp(timeAxis);
You can use this timeAxis for your use case.
