Hidradenitis suppurativa (HS) is a chronic skin disease that is difficult to manage and often refractory to medical management. Light and laser therapies have been utilized in the field of dermatology to treat a variety of skin conditions, but more recently were studied in the management of HS. Usually performed as outpatient procedures with a low risk of complications, they offer several advantages to traditional cold knife surgical procedures. We reviewed the various light- and laser-based treatments studied in HS and compared their efficacy. Outcome measures were not standardized, which made comparison difficult. Studies performed were few in number and often limited by small patient samples. Larger, randomized controlled trials that compare these treatment modalities to medical and surgical management are needed. Despite their limitations, light- and laser-based therapies are promising treatment options for patients with refractory HS.
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http://dx.doi.org/10.12788/j.sder.2017.023 | DOI Listing |
Nanophotonics
May 2024
Centre for Advanced Photonics and Process Analysis, Munster Technological University, T12 T66T Bishopstown, Cork, Ireland.
Brain Stimul
December 2024
Beijing Institute for Brain Research, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 102206, China; Chinese Institute for Brain Research, Beijing, 102206, China. Electronic address:
Background: The use of near-infrared lasers for transcranial photobiomodulation (tPBM) offers a non-invasive method for influencing brain activity and is beneficial for various neurological conditions. However, comprehensive quantitative studies on its safety are lacking.
Objective: This study aims to investigate the safety of 1064-nm laser-based tPBM across brain structure, brain function, neural damage, cognitive ability and tolerance.
Imparting information on a light wave by signal modulation is fundamental for all forms of optical sensors. Here, we use a microfiber coupled whispering-gallery microcavity as a feedback element and experimentally demonstrate the intensity modulation on a fiber laser based on dissipative acousto-optic interaction where the acoustic wave modulates the coupling strength of suspended microfiber and microcavity, and accordingly modulates the decay rate of laser cavity. As high as 35% modulation depth is realized and the laser is then explored for the sensitive detection of an acoustic wave in air and a noise equivalent pressure of less than 0.
View Article and Find Full Text PDFAdvances in the generation of structured light beams have led to their increased adoption in various applications such as laser-based material processing, optical microscopy, and optical communication. However, the reliability of these beams, particularly Laguerre-Gauss beams, further hinges on their resilience against damage caused by obstructions. In this work, the self-reconstruction of Laguerre-Gauss beams upon on-axis obstruction is analyzed by modeling the obstructed beam in terms of two orthogonal components-one component representing the attenuated beam and another representing the perturbation by the obstruction.
View Article and Find Full Text PDFThe red edge effect of plants is extensively utilized in vegetation remote sensing, particularly by applying hyperspectral LiDAR (HSL) technology. This technology effectively captures spectral information from targets together with range measurements by processing recorded waveforms in the red-edge spectral bands. Despite its widespread use, there is still potential for enhancing the tuning accuracy and the energy output of each channel.
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