We demonstrate a method of stabilizing the carrier-envelope phase (CEP) of low-repetition-rate, high-energy femtosecond laser systems such as TW-PW class lasers. A relatively weak high-repetition-rate (~1 kHz) reference pulse copropagates with a low-repetition-rate (10 Hz) high-energy pulse, which are s- and p-polarized, respectively. Using a Brewster angle window, the reference pulse is separated after the power amplifier and used for feedback to stabilize its CEP. The single-shot CEP of the high-energy pulse is indirectly stabilized to 550 mrad RMS, which is the highest CEP stability ever reported for a low-repetition-rate (10-Hz) high-energy laser system. In this novel method, the feedback frequency of the reference pulse from the front-end preamplifier can be almost preserved. Thus, higher CEP stability can be realized than for lower frequencies. Of course, a reference pulse with an even higher repetition rate (e.g., 10 kHz) can be easily employed to sample and feed back CEP jitter over a broader frequency bandwidth.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.24.013276 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Childhood heart disease and parental emotional wellbeing: a predictive model to explain the perception of quality of life in children and adolescents.
Health Qual Life Outcomes
January 2025
Department of Human Sciences, LUMSA University, Rome, 00193, Italy.
Background: The number of people living with congenital heart disease (CHD) in 2017 was estimated to be 12 million, which was 19% higher than that in 1990. However, their death rate declined by 35%, emphasizing the importance of monitoring their quality of life due to its impact on several patient outcomes. The main objective of this study is to analyze how parents' psychosocial factors contribute to children's and adolescents' perceptions of their QoL, focusing on their medical condition.
View Article and Find Full Text PDFJoint analysis of blood pressure changes over time and survival of hypertensive patients under treatment at Sawula hospital in Southern Ethiopia.
BMC Public Health
January 2025
Department of Statistics, Borana University, Borena, Oromia Region, Ethiopia.
Introduction: Hypertension is among the most significant non-communicable public health issues worldwide. High blood pressure, or hypertension, has been associated with severe health consequences, including death, aneurysms, stroke, chronic renal disease, eye damage, heart attack, heart failure, peripheral artery disease, and vascular dementia. Consequently, this study aimed to investigate the predictors linked to survival time and the progression of blood pressure measurements in hypertensive patients.
View Article and Find Full Text PDFAnalysis of the risk of death and its associated risk factors in Chinese patients with young-onset type 2 diabetes.
Front Endocrinol (Lausanne)
January 2025
Department of Endocrinology, Huai'an Hospital Affiliated to Xuzhou Medical University and Huai'an Second People's Hospital, Huai'an, Jiangsu, China.
Objectives: To examine the association between the age at onset of diabetes and the risk of all-cause mortality in a population of individuals diagnosed with type 2 diabetes mellitus (T2DM) and to identify risk factors associated with all-cause mortality in young-onset T2DM (YOD) patients in China.
Methods: This study utilized a cohort of 9759 patients who were diagnosed with T2DM and who were registered and enrolled in the National Basic Public Health Service Management Program in Qinghe District (now Qingjiangpu District) and Huai'an District, Huai'an City, Jiangsu Province, China. The patients were observed from November 2013 to July 2014, and all-cause mortality data were obtained by comprehensive matching with the Huai'an City Resident Mortality Database as of December 31, 2019.
Study on the effect of full body isometric resistance training on cardiovascular pressure response.
J Hypertens
February 2025
Research Centre for Exercise Detoxification, College of Physical Education, Southwest University, Chongqing 400715, China.
Background And Aims: Exploring the effect of different isometric resistance training (IRT) on improving blood pressure, so as to provide important reference for the design of aerobic exercise prescription for IRT to improve blood pressure.
Methods: Forty eight overweight or obese college students with irregular exercise habits were randomly divided into four groups and underwent exercise intervention three times a week for a total of 6 weeks. Cardiovascular changes were evaluated before the first and 18th exercise sessions, as well as 0, 30, and 60 min after exercise.
Advance Care Planning Billing Codes Associated With Decreased Healthcare Utilization in Neurological Disease.
J Healthc Manag
January 2025
Gregory Brown, MD, PhD, Department of Medicine, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania; Sol De Jesus, MD, Department of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania; Emily Leboffe, MD, Department of Medicine, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania; Andy Esch, MD, Center to Advance Palliative Care, New York, New York; and Kristina Newport, MD, Department of Medicine, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania.
Goals: Advance care planning (ACP) procedure codes have been established to reimburse meaningful care goal discussions; however, the utilization frequency of these codes in neurological disease is unknown. The objective of this study is to identify the association between ACP codes and healthcare utilization in chronic neurodegenerative diseases.
Methods: This is a multicenter cohort study using real-world electronic health data.
Want 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!