The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform

Ove Axner - One of the best experts on this subject based on the ideXlab platform.

Aleksandra Foltynowicz - One of the best experts on this subject based on the ideXlab platform.

R L Byer - One of the best experts on this subject based on the ideXlab platform.

  • Molecular frequency reference at 1 56 μm using a 12 c 16 o overtone transition with the noise immune cavity enhanced optical heterodyne Molecular Spectroscopy method
    Optics Letters, 2016
    Co-Authors: Shailendhar Saraf, Paul Berceau, Alberto Stochino, R L Byer, J A Lipa
    Abstract:

    We report on a Molecular clock based on the interrogation of the 3ν rotational-vibrational combination band at 1563 nm of carbon monoxide C1612O. The laser stabilization scheme is based on the noise-immune cavity-enhanced optical heterodyne Molecular Spectroscopy (NICE-OHMS) technique in frequency modulation (FM) saturation Spectroscopy. We use a high-finesse ultra-low expansion (ULE) glass optical cavity with CO as the Molecular reference for long-term stabilization of the cavity resonance. We report an Allan deviation of 1.8×10-12 at 1 s that improves to ∼3.5×10-14 with 1000 s of averaging.

  • mid infrared supercontinuum generation in tapered chalcogenide fiber for producing octave spanning frequency comb around 3 μm
    Optics Express, 2012
    Co-Authors: Alireza Marandi, K L Vodopyanov, Charles W Rudy, V G Plotnichenko, Evgeny M Dianov, R L Byer
    Abstract:

    We demonstrate mid-infrared (mid-IR) supercontinuum generation (SCG) with instantaneous bandwidth from 2.2 to 5 μm at 40 dB below the peak, covering the wavelength range desirable for Molecular Spectroscopy and numerous other applications. The SCG occurs in a tapered As2S3 fiber prepared by in-situ tapering and is pumped by femtosecond pulses from the subharmonic of a mode-locked Er-doped fiber laser. Interference with a narrow linewidth c.w. laser verifies that the coherence properties of the near-IR frequency comb have been preserved through these cascaded nonlinear processes. With this approach stable broad mid-IR frequency combs can be derived from commercially available near-IR frequency combs without an extra stabilization mechanism.

  • mid infrared supercontinuum generation in tapered chalcogenide fiber for producing octave spanning frequency comb around 3 mu m
    arXiv: Optics, 2012
    Co-Authors: Alireza Marandi, K L Vodopyanov, Charles W Rudy, V G Plotnichenko, Evgeny M Dianov, R L Byer
    Abstract:

    We demonstrate mid-infrared (mid-IR) supercontinuum generation (SCG) with instantaneous bandwidth from 2.2 to 5 {\mu}m at 40 dB below the peak, covering the wavelength range desirable for Molecular Spectroscopy and numerous other applications. The SCG occurs in a tapered As2S3 fiber prepared by in-situ tapering and is pumped by femtosecond pulses from the subharmonic of a mode-locked Er-doped fiber laser. Interference with a narrow linewidth c.w. laser verifies that the coherence properties of the near-IR frequency comb have been preserved through these cascaded nonlinear processes. With this approach stable broad mid-IR frequency combs can be derived from commercially available near-IR frequency combs without an extra stabilization mechanism.

Markku Vainio - One of the best experts on this subject based on the ideXlab platform.

  • mid infrared optical parametric oscillators and frequency combs for Molecular Spectroscopy
    Physical Chemistry Chemical Physics, 2016
    Co-Authors: Markku Vainio, Lauri Halonen
    Abstract:

    Nonlinear optical frequency conversion is one of the most versatile methods to generate wavelength-tunable laser light in the mid-infrared region. This spectral region is particularly important for trace gas detection and other applications of Molecular Spectroscopy, because it accommodates the fundamental vibrational bands of several interesting molecules. In this article, we review the progress of the most significant nonlinear optics instruments for widely tunable, high-resolution mid-infrared Spectroscopy: continuous-wave optical parametric oscillators and difference frequency generators. We extend our discussion to mid-infrared optical frequency combs, which are becoming increasingly important spectroscopic tools, owing to their capability of highly sensitive and selective parallel detection of several Molecular species. To illustrate the potential and limitations of mid-infrared sources based on nonlinear optics, we also review typical uses of these instruments in both applied and fundamental Spectroscopy.

  • frequency comb referenced Molecular Spectroscopy in the mid infrared region
    Optics Letters, 2011
    Co-Authors: Markku Vainio, Mikko Merimaa, Lauri Halonen
    Abstract:

    A simple method for absolute-frequency measurements of Molecular transitions in the mid-IR region is reported. The method is based on a cw singly resonant optical parametric oscillator (SRO), which is tunable from 3.2 to 3.45 μm. The mid-IR frequency of the SRO is referenced to an optical frequency comb through its pump and signal beams. Sub-Doppler Spectroscopy and absolute-frequency measurement of the P(7) transition of the ν3 band of CH4 are demonstrated.

Lauri Halonen - One of the best experts on this subject based on the ideXlab platform.

  • mid infrared optical parametric oscillators and frequency combs for Molecular Spectroscopy
    Physical Chemistry Chemical Physics, 2016
    Co-Authors: Markku Vainio, Lauri Halonen
    Abstract:

    Nonlinear optical frequency conversion is one of the most versatile methods to generate wavelength-tunable laser light in the mid-infrared region. This spectral region is particularly important for trace gas detection and other applications of Molecular Spectroscopy, because it accommodates the fundamental vibrational bands of several interesting molecules. In this article, we review the progress of the most significant nonlinear optics instruments for widely tunable, high-resolution mid-infrared Spectroscopy: continuous-wave optical parametric oscillators and difference frequency generators. We extend our discussion to mid-infrared optical frequency combs, which are becoming increasingly important spectroscopic tools, owing to their capability of highly sensitive and selective parallel detection of several Molecular species. To illustrate the potential and limitations of mid-infrared sources based on nonlinear optics, we also review typical uses of these instruments in both applied and fundamental Spectroscopy.

  • frequency comb referenced Molecular Spectroscopy in the mid infrared region
    Optics Letters, 2011
    Co-Authors: Markku Vainio, Mikko Merimaa, Lauri Halonen
    Abstract:

    A simple method for absolute-frequency measurements of Molecular transitions in the mid-IR region is reported. The method is based on a cw singly resonant optical parametric oscillator (SRO), which is tunable from 3.2 to 3.45 μm. The mid-IR frequency of the SRO is referenced to an optical frequency comb through its pump and signal beams. Sub-Doppler Spectroscopy and absolute-frequency measurement of the P(7) transition of the ν3 band of CH4 are demonstrated.