Assaf Halevy

6 Questions 31 Answers 0 Followers

Questions related from Assaf Halevy

What is the highest average power pulsed laser demonstrated so far in the blue or green wavelengths?

I'm particulary intersted to learn what is the the maximal average power and/or peak power achieved using second-harmonic generation that result in 100-500 ns pulses, especially @ 515/532...

05 May 2016 3,115 5 View

What is the best method to characterize ultrashort laser pulses?

After reading through Swamp Optics' website (http://www.swampoptics.com) I got convinced that the best way to measure and characterize ultrashort laser pulses (ps/fs long) is using their products,...

07 April 2016 8,778 6 View

Does IAD coating degrade over time compared to IBS coating?

Hi, Is it true that at first IAD and IBS coated optical elements may behave similarly, but over time the IAD coating may peel off or degrade, especially when exposed to humidity or high-power...

18 January 2016 6,015 2 View

What is the highest conversion efficiency in CW SHG achieved to date?

I'm especially intersted in frequency doubling of IR radiation to visible using nonlinear crystals in a single-pass configuration. Thanks, Assaf

27 October 2015 7,956 2 View

What is the origin of interference patterns generated by a laser diode?

Hi, I'm using a regular cheap low-power laser diode followed by a collimating lens and see several interference patterns on the laser spot (see attached pic). I know these patterns do not...

02 April 2015 6,475 13 View

Any idea why a polarizing beam splitter modifies the polarization properties of light that passes through it?

Hi, My setup includes a horizontally linearly polarized laser beam that passes through a polarizing beam splitter and then enters a polarimeter in order to check its polarization properties. I've...

01 March 2015 6,447 8 View