A broadband and high throughput single-monochromator Raman spectrometer; application for single-wall carbon nanotubes

Abstract

We present a high sensitivity single-monochromator Raman spectrometer which allows operation with a tunable laser source. The instrument is based on the modification of a commercial Raman spectrometer; such instruments operate with holographic Rayleigh filters which also act as a laser mirrors and are usually considered as inherently narrow-band. In our design, the two tasks are separated and the filter can be freely rotated without much effect on the light alignment. Since rotation shifts the filter passband, this modification allows tunable operation with efficient stray light filtering down to 150 1/cm. The design is optimized for single-wall carbon nanotubes, for which the performance is demonstrated using a tunable dye-laser source. The spectrometer thus combines the high sensitivity with the broadband characteristics of usual triple monochromator systems.

6 pages, 6 figures, accepted for publication at Review of Scientific Instruments

References in corpus (2)

• Chirality distribution and transition energies of carbon nanotubes
• Universal temperature dependence of optical excitation life-time and band-gap in chirality assigned semiconducting single-wall carbon nanotubes

Cited by in corpus (8)

• A detailed analysis of the Raman spectra in superconducting boron doped nanocrystalline diamond
• A Fourier transform Raman spectrometer with visible laser excitation
• Incidence of multilayers in chemically exfoliated graphene
• Ultralong spin lifetime in light alkali atom doped graphene
• Improved alkali intercalation of carbonaceous materials in ammonia solution
• Radiation detection and energy conversion in nuclear reactor environments by hybrid photovoltaic perovskites
• Transport, Magnetic and Vibrational Properties of Chemically Exfoliated Few Layer Graphene
• Adaptation of a commercial Raman spectrometer for multiline and broadband laser operation