Q-switched operation of a diode-side-pumped, conduction-cooled Tm,Ho:YLF laser oscillator with 100-mJ output at a pulse repetition rate of 20 Hz and an eye-safe wavelength of 2-μm was achieved. The noncomposite Tm,Ho:YLF laser rod was conduction-cooled down to -80°C through thermal contact of In films from Cu heat sinks, and the laser diode arrays were conduction-cooled to approximately 20°C using Cu heat sinks in a vacuum container. A ring resonator of 3.86 m length with an acousto-optic Q-switch was used. The pulse width was 125 ns, and optical-to-optical efficiency was approximately 7% for an output of 100 mJ. The laser is used at 2.05 μm for applications of Doppler wind lidar measurements, CO differential absorption lidar measurements, and aerosol profiling.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/AO.54.007865 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Computing Accurate & Reliable Rovibrational Spectral Data for Aluminum-Bearing Molecules.
J Comput Chem
January 2025
Department of Chemistry and Biochemistry, University of Mississippi, Oxford, Mississippi, USA.
The difficulty of quantum chemically computing vibrational, rotational, and rovibrational reference data via quartic force fields (QFFs) for molecules containing aluminum appears to be alleviated herein using a hybrid approach based upon CCSD(T)-F12b/cc-pCVTZ further corrected for conventional CCSD(T) scalar relativity within the harmonic terms and simple CCSD(T)-F12b/cc-pVTZ for the cubic and quartic terms: the F12-TcCR+TZ QFF. Aluminum containing molecules are theorized to participate in significant chemical processes in both the Earth's upper atmosphere as well as within circumstellar and interstellar media. However, experimental data for the identification of these molecules are limited, showcasing the potential for quantum chemistry to contribute significant amounts of spectral reference data.
View Article and Find Full Text PDFImmunophenotyping characteristics and clinical outcome of COVID-19 patients treated with azvudine during the Omicron surge.
Front Immunol
December 2024
Department of Gastroenterology, Qingdao University Medical College Affiliated Yantai Yuhuangding Hospital, Yantai, China.
Background: Little is known about immunophenotyping characteristics and clinical outcomes of COVID-19 patients treated with azvudine during the Omicron variant surge.
Methods: This study enrolled patients diagnosed with COVID-19 from December 2022 to February 2023. The primary outcome was defined as all-cause mortality, along with a composite outcome reflecting disease progression.
Enhancing water desalination efficiency through integrated photovoltaic thermal systems with phase change materials.
J Environ Manage
December 2024
Mechanical Engineering Department, Jordan University of Science and Technology (JUST), IRBID, 22110, Jordan.
This study investigates the effectiveness of chemically modified composite phase change materials in photovoltaic thermal solar energy systems and hybrid desalination systems in two municipalities, comparing their efficacy using different draw solutions for thorough comparison. The effect of non-composite Paraffin PCMs, Paraffin/CNTs Composite PCMs, and Nitrogen-doped graphene Composite PCMs on system efficiency over 96 h is investigated. The simulation under natural conditions looks at two scenarios: brackish water desalination in Irbid with tetraethylammonium bromide and seawater desalination in Aqaba with sodium chloride as a draw solution.
View Article and Find Full Text PDFTreatment Outcomes and Patterns of Disease Recurrence of Patients with Carcinoma of the Buccal Mucosa.
Indian J Otolaryngol Head Neck Surg
December 2024
Department of Radiotherapy, M L N Medical College, Prayagraj, Uttar Pradesh India.
Article Synopsis
- The study focuses on treating locally advanced buccal mucosa cancer, primarily through surgery and postoperative radiotherapy with specific chemotherapy regimens, including Cisplatin and 5-Fluorouracil.
- It evaluates the effectiveness of de-escalated treatment using ipsilateral face radiotherapy, which targets only the affected side of the face to improve functions like chewing and mitigate side effects.
- A total of 54 patients were reviewed retrospectively, revealing treatment patterns and outcomes, including indications for radiation based on tumor margins and lymph node involvement, along with one patient's alternative treatment approach leading to poor outcomes.
Deceased donor non-composite split liver and intestinal transplantation for children.
Surg Today
August 2024
Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan.
Children with intestinal failure suffer liver damage associated with parenteral nutrition: a condition known as intestinal failure-associated liver disease (IFALD), which requires transplantation of both liver and intestine. In many countries, simultaneous transplantation of these two organs is performed using grafts from a deceased donor, but there have been no such cases in Japan, and the details of the procedure are not clear. Recently, we performed simultaneous split liver and intestinal transplantation in two premature infants with IFALD, using organs from identical deceased donors and achieved good results.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!