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Hi everyone, it's been awhile since my last post here, but I'm now working as a post-doc doing multiphoton lithography with femtosecond lasers. We're trying to raise funds for our research group at UT Austin since proposals have not been funded. I've been given the green light by the...

Hello all, I know it's been awhile! I recently added a 1W 405 nm Sanwu Silver to my collection that arrived on August 2. It took a couple weeks for me to schedule my laser to be metered, and I planned to write up a review once I had that data. One of the research scientists at the Texas...

I once again have to thank the staff at the Texas Petawatt Laser Facility for working after hours to help me meter all three of my portable lasers, the Sanwu Spiker being the last one that I'll be reviewing until I purchase something new :san: I had a lot of concerns before buying this because...

This is the second of three reviews that I'm doing after I had the opportunity to meter my lasers at the Texas Petawatt Laser Facility. I've included measurements of power and divergence, plenty of pictures, and even a video of mode hopping. The risk of confiscation at customs made me decide...

I wanted to write a review for awhile, but I decided to hold off until I had access to a LPM. That opportunity came this weekend at the Texas Petawatt Laser Facility where I got to meter my 3 portable lasers. This review of the Optotronics Premium +10mW green laser is my first review on this...

After experiencing some trouble in finding someone to meter a few of the lasers I bought, I decided to try something crazy and reach out to the people at the Texas Petawatt Laser Facility, home of the most powerful laser in the world until just recently. Its peak power is a massive 1 Petawatt...

Hey guys, I'm in the market for a more powerful 532 nm laser, and my budget is under $200. Right now, I'm considering either the HL 300mW ($161), or the PL 200mW ($145) from LaserBTB (see picture below). I've read a lot about the pros and cons for each, but I'd like to see what some of you think...

I like to use my 3W 445nm Sanwu outdoors at golf courses very late at night when no one is around. I aim at the tree line, far away from people or reflective objects several hundred feet away. I love to look at the beam outdoors without eye protection, but of course I never do this indoors or...

How much of the beam that we see from a powerful laser pointer is visible due to particles in the air? If you were to use your laser in an environment without any particles, would you still be able to see the beam due only to Rayleigh scattering off the air molecules? I work in a Class 100...

Hi, I'm a graduate engineering student in school at UT Austin. I started using lasers to analyze minerals (Raman spectroscopy), and developed an amateur interest in laser pointers while getting to play with the powerful 532 and 633 nm lasers on our machine.