The temporal behavior of femtosecond laser pulses propagating and scattering in random media was studied using an optical fiber probe and a streak camera. Information on the temporal profile of laser pulse scattering at 90 degrees in semiopaque media was analyzed. Apparent ballistic transport was observed for both single and multiple scattering regimes. A phantom (hidden foreign object) was identified in a semiopaque environment using time resolved techniques with a total optical density of ~3.

Download full-text PDF

Source
http://dx.doi.org/10.1364/AO.28.002304DOI Listing

Publication Analysis

Top Keywords

random media
8
time dynamics
4
dynamics photon
4
photon migration
4
migration semiopaque
4
semiopaque random
4
media temporal
4
temporal behavior
4
behavior femtosecond
4
femtosecond laser
4

Similar Publications

Introduction: Non-adherence to tuberculosis (TB) treatment poses a significant challenge to effective TB management globally and is a major contributor to the emergence of multidrug-resistant TB. Although adherence to TB treatment has been widely studied, a comprehensive evaluation of the comparative levels of adherence in high- versus low-TB burden settings remains lacking. The objective of this systematic review and meta-analysis is to assess the levels of adherence to TB treatment in high-TB burden countries compared to low-burden countries.

View Article and Find Full Text PDF

Medicinal hemp (Cannabis sativa L.) is gaining popularity due to its natural products with potential therapeutic properties, and its cultivation has recently been initiated in developing countries such as Turkey, Iran, India, and Pakistan. The crop is primarily grown using feminized seeds or popular varieties to achieve higher cannabidiol (CBD) yields, with seeds costing approximately $5-10 each.

View Article and Find Full Text PDF

This study presents a fully powered RCT testing the effectiveness and acceptability of two positive body image online media-based micro-interventions designed for young children. A total of 439 children aged 4-6 years were randomised into one of four conditions: i) episode intervention, ii) episode control, iii) music video intervention, or iv) music video control. Children and their accompanying parent attended two data collection sessions, approximately a week apart.

View Article and Find Full Text PDF

Background: Stunting is a vital indicator of chronic undernutrition that reveals a failure to reach linear growth. Investigating growth and nutrition status during adolescence, in addition to infancy and childhood is very crucial. However, the available studies in Ethiopia have been usually focused in early childhood and they used the traditional stastical methods.

View Article and Find Full Text PDF

Background: Interventions targeting social media use show mixed results in improving well-being outcomes, particularly for persons with problematic forms of smartphone use. This study assesses the effectiveness of an intervention app in enhancing well-being outcomes and the moderating role of persons' perceptions about problematic smartphone use (PSU).

Methods: In a randomized controlled trial, N = 70 participants, allocated to the intervention (n = 35) or control condition (n = 35), completed weekly online surveys at baseline, post-intervention, and follow-up.

View Article and Find Full Text PDF

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!