This search combines search strings from the content search (i.e. "Full Text", "Author", "Title", "Abstract", or "Keywords") with "Article Type" and "Publication Date Range" using the AND operator.
Beilstein J. Nanotechnol. 2018, 9, 490–498, doi:10.3762/bjnano.9.47
Figure 1: Block diagram of the multifrequency AFM control loop.
Figure 2: Block diagram of a single-frequency Lyapunov filter. The pink shaded area highlights the calculatio...
Figure 3: Block diagram of a multifrequency Lyapunov filter.
Figure 4: (a) Simulated and (b) experimentally obtained frequency responses of the Lyapunov filter with a car...
Figure 5: Experimental frequency responses from a single-frequency Lyapunov filter with five carrier frequenc...
Figure 6: The effect of channel cross-coupling on tracking bandwidth for a system based on two frequencies. T...
Figure 7: Experimental and simulated off-mode rejection frequency responses for both (a–e) fast demodulator (...
Figure 8: Experimental frequency response of the NSG01 cantilever in free air and the power spectrum of the t...
Figure 9: Higher harmonic (amplitude) AFM imaging with a (a–f) lock-in amplifier and (g–l) multifrequency Lya...
Figure 10: Experimental frequency response of the DMASP cantilever in free air and the power spectrum of the t...
Figure 11: Higher-harmonic AFM imaging performed with the fundamental mode of the DMASP cantilever on a PS/LPD...
Beilstein J. Nanotechnol. 2017, 8, 1407–1426, doi:10.3762/bjnano.8.142
Figure 1: (a) Time-domain example of an amplitude modulated signal with carrier frequency fc = 50 Hz, modulat...
Figure 2: Classification of demodulation methods discussed in this paper.
Figure 3: (a) Functional block diagram of the lock-in amplifier implementation and (b) illustrative double-si...
Figure 4: (a) Functional block diagram of the high-bandwidth lock-in amplifier implementation and (b) illustr...
Figure 5: General block diagram of the Kalman filter for demodulation. Thick lines indicate vector-valued sig...
Figure 6: Functional block diagram of the Lyapunov filter implementation.
Figure 7: Functional block diagram of (a) moving average filter and (b) mean absolute deviation measurement t...
Figure 8: Functional block diagram of (a) the peak hold method and (b) the modified peak hold method based on...
Figure 9: Functional block diagram of the coherent demodulator implementation.
Figure 10: Schematic signal flow of the numerical integration scheme employed by the coherent demodulator with...
Figure 11: Tracking bandwidth frequency response of the demodulators showing the −3 dB tracking bandwidth and ...
Figure 12: Off-mode rejection of the demodulators for a carrier frequency of fc = 50 kHz and a tracking bandwi...
Figure 13: Off-mode rejection of (a) fourth-order lock-in amplifier and (b) first-order Kalman filter for a ca...
Figure 14: Schematic block diagram of the reference experiment of filtering a band-limited white noise process...
Figure 15: Schematic block diagram of bandwidth-vs-noise experiment of recovering an amplitude-modulated band-...
Figure 16: Tracking bandwidth vs total integrated noise (TIN) for each demodulator (blue circles) and for a lo...
Figure 17: (a) Frequency response of the DMASP cantilever in open-loop (blue) and for various quality factor c...
Figure 18: 3D image, 2D image and cross section of amplitude estimates obtained from (a) lock-in amplifier wit...
Figure 19: 3D image, 2D image and cross section of amplitude estimates obtained from (a) lock-in amplifier wit...
Figure 20: Functional block diagram of the Kalman filter implementation. Thick lines indicate vector-valued si...
Figure 21: Maximum tracking bandwidth of (a) coherent demodulator (n = 6) and (b) half-period coherent demodul...
Figure 22: Relationship between demodulator tuning variable and achievable tracking bandwidth.
Figure 23: Experimental and theoretical total integrated noise of a low-pass filtered white noise process for ...