Measurement of the low temperature dependence in semiconductor
The low-temperature dependence of the Raman characteristic peaks of Si, SiC, single-crystal diamond and polycrystalline diamond has been measured by laser-excited Raman spectroscopy.
Low-temperature Raman studies of graphene oxide:
This work is devoted to the low-temperature Raman studies of a bright representative of 2D materials—graphene oxide (GO) film in the range of
Low Temperature Raman Measurements on Layers of Graphene
In this report, we present Raman measurements on layers of Graphene performed with a modified attocube attoCFM I setup. Appropriate laser line filtering as well as an additional spectrometer were
Temperature induced modulation of resonant Raman scattering in
The temperature evolution of the Raman scattering spectrum brings forward key observations, as the integrated intensity profiles of different phonon modes show diverse trends.
Review of Existing Standards, Guides, and Practices for Raman
Standards, guides, and practices related to Raman spectroscopy are grouped in this review in four main sections. The first section after the introduction deals with the terminology.
Low Temperature Raman Investigations and Photoresponse of
We report on the temperature dependence of in-plane E2g and out-of-plane A1g Raman modes in high-quality few-layer MoS2 (FLMS) prepared using a high-temperature vapor-phase method.
102-nm-wide, high-gain, low-noise lumped Raman amplifier
Abstract: We present a compact dual-stage lumped Raman amplifier based on 2x1 km lengths of highly nonlinear fibre (HNLF). The amplifier provides 28.5-dB net gain with 4.5-dB optical
Fiber-optic temperature sensing using Raman spectrum near
We demonstrated effective real-time temperature sensing by monitoring Raman power variations at this specific frequency. This paper presents a high-speed Raman temperature sensor
Low-temperature Raman spectroscopy with high collection efficiency
Raman spectroscopy at variable temperatures provides information on phonon-phonon interactions. Due to the weak signal, domains of nanometer scale and the small temperature range in which the
Low temperature Raman spectroscopy | Optixs
Raman microspectrometry at low temperatures (4K) and a unique configuration of a closed-cycle optical cryostat and microscope objective to achieve high numerical apertures.
Low-temperature Raman spectroscopy with high collection efficiency
The work group around Prof. Kenneth Burch at the Boston College together with Montana Instruments have now developed a brand-new setup approach for low-temperature Raman measurements. This
Experimental characterization of Raman amplifier optimization through
Therefore, we characterize the robustness of the framework testing it experimentally for different Raman amplifier configu-rations and analyzing if the proposed modification will actually increase its accuracy.
Fiber Amplifiers and Fiber Lasers Based on Stimulated Raman
Nowadays, in fiber optic communications the growing demand in terms of transmission capacity has been fulfilling the entire spectral band of the erbium-doped fiber amplifiers (EDFAs).
Experimental optimization of the scheme of second-order Raman
In this paper, we demonstrate four different second-order Raman amplifier schemes which include first-order and second-order Raman pump. The amplifier performances are measured and
Ultra-wideband Cryogenic Low Noise Amplifiers: a Cool and Crucial
This article reports on the evolution in designing state-of-the-art cryogenic, wideband, low-noise amplifiers as used in the intermediate frequency stages of ALMA receivers. The most recent designs
Performance optimization of different Raman amplifier configurations
Pump powers of the Raman amplifier are selected using multiparameter optimization algorithm to achieve maximum gain with small ripple. The effects of varying input powers on gain,
Single-channel distributed Raman temperature sensing based on a 1
In this paper, we report on a cost-efficient and easy to implement single-channel Raman DTS system based on the prediction of the temperature by a deep neural network.
Cisco Network Convergence System 2000 Series Erbium-Doped Raman
The Cisco® Network Convergence System 2000 Series (NCS 2000 Series) introduces hybrid amplifier modules combining Raman amplification with erbium doped-fiber amplifiers
This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.