chanelink logo
CHANELINK
Español

Researchers Obtaining Scientific Returns from Raman Spectroscopy for External Bioexploration Using Lasers

148
2023-10-23 15:09:27
Ver traducción

We investigated the potential of laser selection in a wide optical range from ultraviolet to visible light, and then to infrared (excitation wavelengths of 325, 532, 785, and 1064 nm), in order to combine and analyze extreme microorganisms related to Earth (such as Cryptomeria elegans, cold floating nematodes, and circular green algae), carbon water compound molecules, as well as simulated mineral mixtures (P-MRS, S-MRS, LRS, and JSC-1) of weathering layers on the Martian and lunar surfaces.

We demonstrate that the optimization of laser photon energy provides (at least one selected excitation wavelength) high-end quality Raman spectroscopy for each inspection sample. In most cases, the infrared spectral range is advanced for biological samples, while excitation within the visible and ultraviolet spectral ranges is usually advantageous, or at least sufficient to accurately identify/analyze mineral phases under luminescent laser spots on simulated planetary surfaces.

UV excitation does not always provide a significant contrast in Raman Stokes response to induced photoluminescence in the studied biomolecules. The most prominent feature in the Raman spectrum of biological samples is assigned to their specific pigments, and is also considered a biomolecular feature of extreme microorganisms. The key issue of the specific advantages and limitations of each specific excitation source means that research can obtain scientific returns from Raman spectroscopy for external biological exploration, such as the optimal trading between single or double excitation wavelengths of biological and geological spectral data.

Source: Laser Network

Recomendaciones relacionadas

  • SpaceX will sell satellite lasers to competitors that can accelerate space communication

    SpaceX President Gwynne Shotwell stated at a meeting on Tuesday that the company has started selling satellite lasers for fast space communication to other satellite companies.SpaceX's thousands of Starlink satellites in low Earth orbit use inter satellite laser links to transmit data to each other in space at the speed of light, so that the network can provide more extensive Internet coverage wo...

    2024-05-10
    Ver traducción

  • A replica of an arcade made with a 3D printer in the 1970s

    A game museum has 3D printed a replica of a historic arcade computer space. The arcade museum in Stroud, Gloucestershire lacks the first commercial arcade video game. They collaborated with Heber company to create a real replica. Neil Thomas, the director of the arcade museum, said that because it is a replica, not an original, they are not "afraid" of letting people play with it.A spokesperson...

    2024-05-29
    Ver traducción

  • New Progress in Research on Three Lattice Photonic Crystal Surface Emission Lasers at Changchun Institute of Optics and Mechanics

    Recently, Tong Cunzhu, the research team of the Chinese President of Science, Chunguang Institute of Mechanical Mechanics, made important progress in the research field of photonic crystal surface emitting lasers (PCSEL), proposed a three lattice structure and achieved a low threshold 1550nm PCSEL. Relevant achievements were published in Light: Science and Application vol.13, 442024, and the famou...

    2024-03-15
    Ver traducción

  • Yangtze Welcomes 8th Overseas Production Site

    On August 8, local time, Jalisco, Mexico welcomed the grand opening of Yangtze Optics Mexico Cable S.A. de C.V., marking the eighth overseas production base of Yangtze Optical Fiber & Cable Co. ("Yangtze Fiber Optics") has successfully set up its eighth overseas production base in its 36-year development history, further advancing its internationalization strategy blueprint. Today, we are pr...

    2024-08-14
    Ver traducción

  • The Future of Data Center Communication: Quantum Dot Semiconductor Comb Laser

    In the constantly evolving field of technology and data communication, researchers have made significant breakthroughs: developing a continuous wave O-band quantum dot semiconductor comb laser for wavelength division multiplexing optical interconnection. With its impressive performance characteristics, this development is expected to completely change the way we manage and transmit data, especiall...

    2024-02-21
    Ver traducción