If I get lost in the wild, but I have a laser pointer, can I point it at the airplane to draw attention for help? It is illegal to point the laser pointer at the aircraft at will. Now I have added that dazzlingly obvious statement to my answer in the editor. With a little digging, you will find various stories used by pilots, sailors, and Coast Guard crews on the Internet.
In fact, there is a laser specially designed for this purpose that projects a flat/line beam to improve the signal capability-you scan the “pointer” horizontally in the direction of the rescuer, and the beam is aligned vertically to obtain a consistent flash without having to carefully aim at a point. I have one in my handbag for more than 7 years. I fly a lot and have been asked twice by TSA without any problems. If I were to go hiking, it would only leave my carry-on luggage.
Not cheap, but brilliant. Literally. Why is there no laser visible when the police point at someone to suggest that the suspect is in imminent danger? If someone points a visible laser at you, that spot will be displayed on you. Unless you have a movie partner who reacts with you when the dots begin to appear, how do you know they are there?
After a few words correctly pointed out that aiming green laser pointer at aircraft is usually illegal and potentially dangerous, I added a warning at the beginning of the warning. However, when the OP asked if it was possible, rather than legal, I supported this answer.
In life and death situations, the law will be broken. In the United States, you are actually protected, and the laws in other places may be different. The last thing to note is that the most common place to buy these equipment is online stores that provide equipment for sailors and pilots.