Jonathan S. Friedman
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View article: On-chip unitary generation of arbitrary complex spatial photonic states
On-chip unitary generation of arbitrary complex spatial photonic states Open
The rapid advancement and high integration of photonic integrated circuits (PICs) have enabled energy-efficient and fast computation in compact chip designs. A fundamental challenge in both classical and quantum information processing is t…
View article: TRANSLIENT: Detecting Transients Resulting from Point-source Motion or Astrometric Errors
TRANSLIENT: Detecting Transients Resulting from Point-source Motion or Astrometric Errors Open
Detection of moving sources over a complicated background is important for several reasons. First is measuring the astrophysical motion of the source. Second is that such motion resulting from atmospheric scintillation, color refraction, o…
View article: TRANSLIENT: Detecting Transients Resulting from Point Source Motion or Astrometric Errors
TRANSLIENT: Detecting Transients Resulting from Point Source Motion or Astrometric Errors Open
Detection of moving sources over complicated background is important for several reasons. First is measuring the astrophysical motion of the source. Second is that such motion resulting from atmospheric scintillation, color refraction, or …
View article: Atmospheric Lidar Fundamentals
Atmospheric Lidar Fundamentals Open
Lidar is a remote sensing technique that employs laser beams to produce a high-resolution, four-dimensional probe, with important applications in atmospheric science. Suitable as a detailed reference or an advanced textbook for interdiscip…
View article: INVESTIGATION OF THE POST-PANDEMIC STEM EDUCATION (STEM 3.0)
INVESTIGATION OF THE POST-PANDEMIC STEM EDUCATION (STEM 3.0) Open
In this work, we analyze the lessons learned from the CoVid-19 pandemic and the prospects of the science education that evolved as a result of the pandemic. The two primary shortcomings that arose during the pandemic include: the poor pres…
View article: Long-term lidar observations of the gravity wave activity near the mesopause at Arecibo
Long-term lidar observations of the gravity wave activity near the mesopause at Arecibo Open
Using 11-year-long K Doppler lidar observations of temperature profiles in the mesosphere and lower thermosphere (MLT) between 85 and 100 km, conducted at the Arecibo Observatory, Puerto Rico (18.35∘ N, 66.75∘ W), seasonal variations of me…
View article: Long-term Lidar Observations of the Gravity Wave Activity near the Mesopause at Arecibo
Long-term Lidar Observations of the Gravity Wave Activity near the Mesopause at Arecibo Open
11-years long K Doppler lidar observations of temperature profiles in the mesosphere and lower thermosphere (MLT) between 85 and 100 km, conducted at the Arecibo Observatory, Puerto Rico (18.35° N, 66.75° W), are used to estimate seasonal …
View article: Photonics workforce education and development in Puerto Rico
Photonics workforce education and development in Puerto Rico Open
At the Puerto Rico Photonics Institute we have responded to the need of a workforce competitively prepared for entry into the fields of lasers and photonics by creating a 1-year Photonics and Lasers Technical certificate, supported under a…
View article: Development of a photonics outreach and education program through partnerships at Universidad Metropolitana for Puerto Rico and the IYL
Development of a photonics outreach and education program through partnerships at Universidad Metropolitana for Puerto Rico and the IYL Open
As the only photonics center in Puerto Rico and the Caribbean we have developed since 2014 and for the International Year of Light 2015 a comprehensive education and outreach program. We show how we have successfully reached an audience of…
View article: Simultaneous and common‐volume lidar observations of K/Na layers and temperature at Arecibo Observatory (18°N, 67°W)
Simultaneous and common‐volume lidar observations of K/Na layers and temperature at Arecibo Observatory (18°N, 67°W) Open
We present the first simultaneous and common‐volume observations of mesospheric K and Na densities and temperature conducted by a K Doppler lidar and a Na lidar at the Arecibo Observatory (18.35°N, 66.75°W), Puerto Rico. Measurements repor…