Université de Neuchâtel

Miniature lamellar grating interferometer based on silicon technology

Manzardo, Omar ; Michaely, Roland ; Schädelin, Felix ; Noell, Wilfried ; Overstolz, Thomas ; de Rooij, Nicolaas F. ; Herzig, Hans-Peter

In: Optics Letters, 2004, vol. 29, no. 13, p. 1437-1439

We present a lamellar grating interferometer realized with microelectromechanical system technology. It is used as a time-scanning Fourier-transform spectrometer. The motion is carried out by an electrostatic comb drive actuator fabricated by silicon micromachining, particularly by silicon-on-insulator technology. For the first time to our knowledge, we measure the spectrum of an extended...

Université de Neuchâtel

Tuning the resonance of a photonic crystal microcavity with an AFM probe

Märki, Iwan ; Salt, Martin Guy ; Herzig, Hans-Peter

In: Optics Express, 2006, vol. 14, no. 7, p. 2969-2978

We present theoretical and experimental results on switching and tuning of a two-dimensional photonic crystal resonant microcavity by means of a silicon AFM tip, probing the highly localized optical field in the vicinity of the cavity. On-off switching and modulation of the transmission signal in the kHz range is achieved by bringing an AFM tip onto the center of the microcavity, inducing a...