Robust, fast and sensitive near-infrared continuous-filtering Vernier spectrometer

Near infrared frequency comb vernier spectrometer for broadband trace gas detection.

We present a femtosecond frequency comb vernier spectrometer in the near infrared with a femtosecond Er doped fiber laser, a scanning high-finesse cavity and an InGaAs camera. By utilizing the properties of a frequency comb and a scanning high-finesse cavity such a spectrometer provides broad spectral bandwidth, high spectral resolution, and high detection sensitivity on a short time scale. We ...

Mid-infrared continuous-filtering Vernier spectroscopy using a doubly resonant optical parametric oscillator

Mimir: A Near-Infrared Wide-Field Imager, Spectrometer, and Polarimeter

Mimir, a new facility-class near-infrared instrument for the 1.8 m Perkins telescope on Anderson Mesa outside Flagstaff, Arizona, was commissioned and has been operating for three years. Mimir is multifunction, performing wide-field (F=5) and narrow-field (F=17) imaging, long-slit spectroscopy, and imaging polarimetry. The F=5 mode images at 0.59′′ per pixel onto the 1024 × 1024 pixel ALADDIN I...

Implementation of continuous filtering frequency comb Vernier spectroscopy for continuous acquisition of spectra in a flame

In this project laser absorption spectroscopy was performed on a flame in a FabryPérot cavity, using an optical frequency comb. Optical frequency comb spectroscopy is a technique that allows broadband ultra-sensitive detection of molecular species in gas phase. Optical frequency combs are generated by femtosecond mode-locked lasers, which generate short pulses and whose spectrum consists of a c...

Near-Infrared Grating Spectrometer for Mobile Phone Applications

Near-infrared (NIR) spectroscopy is a well-established technique for the chemical analysis of organic and inorganic matter. Accordingly, spectroscopic instrumentation of different complexity has been developed and is currently commercially available. However, there are an increasing number of new mobile applications that have come into focus and that cannot be addressed by the existing technolo...